1. Sahraian A, Gholami A, Omidvar O. The Relationship Between Religious Attitude and Happiness in Medical Students in Shiraz University of Medical Sciences Ofogh-e-Danesh. 2011;17(2):69-74.

2. Mozafarinia f, Shokravi FA, hydarnia A. Relationship between spiritual health and happiness among students. Iranian Journal of Health Education and Health Promotion. 2014;2(2):97-108.

3. Zabeti Arani M, Khodabakhshi-Kolaee A. The Effectiveness of Making and Collection of Family Albums on Autobiographical memory and Happiness in Elderly. Journal of Health Literacy. 2017;2(2):117-26. [DOI:10.22038/jhl.2017.10946]

4. Ladhari R, Souiden N, Dufour B. The role of emotions in utilitarian service settings: The effects of emotional satisfaction on product perception and behavioral intentions. Journal of Retailing and Consumer Services. 2017;34:10-8. [DOI:10.1016/j.jretconser.2016.09.005]

5. Alipour A, Aerab Sheibani K. Relation of Hopeness and Happiness with Job Satisfaction among Teachers. Journal of Psychology. 2011;6(22):71-84.

6. Creamer M, O'Donnell ML, Carboon I, Lewis V, Densley K, McFarlane A, et al. Evaluation of the Dispositional Hope Scale in injury survivors. Journal of Research in Personality. 2009;43(4):613-7. [DOI:10.1016/j.jrp.2009.03.002]

7. Kemer G, Atik G. Hope and Social Support in High School Students from Urban and Rural Areas of Ankara, Turkey. Journal of Happiness Studies. 2011;13(5):901-11. [DOI:10.1007/s10902-011-9297-z]

8. Rassouli M, Yaghmaie F, Alavi Majd H. Psychometric properties of "Hopefulness Scale for Adolescents" in Iranian institutionalized adolescents Payesh. 2010;9(2):197-204.

9. Hariri M, Khodami N. A study of the efficacy of teaching happiness Based on the Fordyce method to elderly people on their life expectancy. Procedia - Social and Behavioral Sciences. 2011; 30:1412-5. [DOI:10.1016/j.sbspro.2011.10.275]

10. Mahshid Bahrami M, Dehdashti A, karami M. Investigation Depression Prevalence and Related Effective Factors Among Students at Health Faculty Semnan University of Medical Sciences in 2017, Iran J Zanko Journal of Medical Sciences. 2017;18(58):24-32.

11. Alizadeh-Navaei R, Hosseini SHJCE. Mental health status of Iranian students until 2011: A systematic review. Journal of Clinical Excellence. 2014;2(1):1-10.

12. Pedrelli P, Nyer M, Yeung A, Zulauf C, Wilens T. College students: mental health problems and treatment considerations. Academic Psychiatry. 2015;39(5):503-11. [DOI:10.1007/s40596-014-0205-9] [PMID] [PMCID]

13. Conversano C, Rotondo A, Lensi E, Della Vista O, Arpone F, Reda MA. Optimism and its impact on mental and physical well-being. Clinical practice and epidemiology in mental health: CP & EMH. 2010;6:25. [DOI:10.2174/1745017901006010025] [PMID] [PMCID]

14. Griggs S. Hope and mental health in young adult college students: an integrative review. Journal of psychosocial nursing and mental health services. 2017;55(2):28-35. [DOI:10.3928/02793695-20170210-04] [PMID]

15. Saffari M, Sanaeinasab H, Rashidi Jahan H, Purtaghi G, Pakpour A. Happiness, Self-efficacy and Academic Achievement among Students of Baqiyatallah University of Medical Sciences. Journal of Medical Education Development. 2014;7(13):45-56.

16. Babyak MA, Snyder CR, Yoshinobu L. Psychometric properties of the hope scale: A confirmatory factor analysis. Journal of research in personality 1993; 27:154-67. [DOI:10.1006/jrpe.1993.1011]

17. Maki AA. The Relationship between Spirituality and Successful Aging Older Minority Women. The Graduate School: The Florida State University 2005.

18. Beigi A, Farahani M, Mohammad-Khani S, Mohammadi-Far M. The Discriminative Role of Quality of Life and Hope in Narcotic Anonymous and Methadone Maintenance Groups. Journal of Clinical Psychology 2011;3(3):75-84. h [DOI:10.22075/JCP.2017.2064]

19. Alipour A, Hashemi T, Babapour J, Tousi F. Relationship between Coping Strategies and Happiness among University Students. Journal of Psychology 2010;5(11):75-89.

20. Bayrami M, Toraj H, Parvaneh A, Ansar Vahideh A. Demographic factors, relying on the Islamic religion and family functioning in prediction of students'happiness in Tabriz University of Medical Sciences, Iran Psychology and Educational Sciences. 2010;9(1):33-43.

21. Barati F, Ashrafi Z, Najafi F, Karimi A, Sharifzadeh G. The Investigation Of Happiness Status And Its Related Factors In Students Of Birjand University Of Medical Sciences In 2013. Journal of Torbat Heydariyeh University of Medical Sciences. 2015;3(2):26-30. ht

22. Alexander ES, Onwuegbuzie AJ. Academic procrastination and the role of hope as a coping strategy. Personality and Individual Differences. 2007;42(7):1301-10. . [DOI:10.1016/j.paid.2006.10.008]

23. Garossi MT, Mani A, Bakhshipour A. The relationship between personality characteristics and happiness feeling among students of Tabriz University. Journal of Psychology. 2006;1(1):144-57.

24. Ghanbarian M, Parmouz M, Rajabzadeh Z. The relationship between the happiness and life expectancy among the students of medical sciences in Behbahan city. Journal of Fundamentals of Mental Health. 2016;18(Special Issue):553-6. [DOI:10.22038/JFMH.2016.8509]

25. Sheng Y, Qiu Z-Q, He Y, Juniper N, Zhang Y. Living Conditions and Palliative Care Needs among End-of-Life Former Commercial Plasma Donors Affected with HIV/AIDS in Rural Henan of China. Biomedical and Environmental Sciences. 2010;23(4):279-86. [DOI:10.1016/S0895-3988(10)60064-5]

26. Perneger TV, Hudelson PM, Bovier PA. Health and happiness in young Swiss adults. Quality of Life Research 2004;13:171-8. [DOI:10.1023/B:QURE.0000015314.97546.60] [PMID]

27. Walls-Ingram SA. Resident quality of life and routinization in rural long term care facilities. Reutilization and quality of life University of Saskatchewan Saskatoon 2006.

28. Siamian H, Naeimi O, Shahrabi A, Hasanzadeh R. The Status of Happiness and its Association with Demographic Variables among the Paramedical Students J Mazand Univ Med Sci 2012;22(86):168-75.

29. Shin HS, Han HR, Kim MT. Predictors of psychological well-being amongst Korean immigrants to the United States: a structured interview survey. Int J Nurs Stud. 2007;44(3):415-26. [DOI:10.1016/j.ijnurstu.2006.04.007] [PMID]

30. Zohoor A, Fekri A. Students' Happiness of School of Management and Medical Information Sciences Iran University of Medical Sciences and Health Services. Armaghane danesh. 2003;8(2):63-72.

31. Sheikhmoonesi F, Zarghami M, Khademloo M, Alimohammadi MM. Happiness and Associated Demographic Factors among Medical Students of Mazandaran University of Medical Sciences, 2010. Journal of Mazandaran University of Medical Sciences. 2013;22(97):132-7.

32. Day L, Hanson K, Maltby J, Proctor C, Wood A. Hope uniquely predicts objective academic achievement above intelligence, personality, and previous academic achievement. Journal of Research in Personality. 2010;44(4):550-3. [DOI:10.1016/j.jrp.2010.05.009]

33. Drach-Zahavya A, Somech A. Coping with health problems: the distinctive relationshipsof Hope sub-scales with constructive thinking and resource allocation. Personality and Individual Differences. 2002; 33:103-17. [DOI:10.1016/S0191-8869(01)00138-6]

34. Wong SS, Lim T. Hope versus optimism in Singaporean adolescents: Contributions to depression and life satisfaction. Personality and Individual Differences. 2009;46(5-6):648-52. [DOI:10.1016/j.paid.2009.01.009]

35. Karami A, Kahrazei F, Arab A. The role of humor in hope and posttraumatic growth among patients with leukemia. Journal of Fundamentals of Mental Health 2018;20(3):176-84.