1. Bloom DE, McKinnon R. The design and implementation of pension systems in developing countries: issues and options. In: International handbook on ageing and public policy. Edward Elgar Publishing; 2014. pp. 108-30.
2. Ju YJ, Han KT, Lee HJ, Lee JE, Choi JW, Hyun IS, et al. Quality of life and national pension receipt after retirement among older adults. Geriatrics & Gerontology International. 2017; 17(8): 1205-13.
3. Sum S, Mahmoodi Y, Tirgar A. Retirement syndrome among Babol city retirees. Iranian Journal of Ageing. 2015; 10(3): 100-9.
4. Chung IS. Retirement planning and quality of life in retirement: factors affecting the Korean American elders’ retirement satisfaction. Journal of Sociology and Social Work. 2017; 5 (1): 85-98.
5. Abruquah LA, Yin X, Ding Y. Old age support in urban China: the role of pension schemes, self-support ability and intergenerational assistance. International Journal of Environmental Rresearch and Public Health. 2019; 16(11): 1918.
6. Lusardi A, Mitchell O. Financial literacy and planning: implications for retirement wellbeing. Cambridge; 2006.
7. Westerlund H, Kivimäki M, Singh-Manoux A, Melchior M, Ferrie JE, Pentti J, et al. Self-rated health before and after retirement in France (GAZEL): a cohort study. The Lancet. 2009; 374(9705): 1889-96.
8. Guven MU, Leite PG. Benefits and costs of social pensions in Sub-Saharan Africa. World Bank, Washington; 2016.
9. Connolly B. Issues in aging in individuals with life long disabilities. Brazilian Journal of Physical Therapy. 2006; 10(3): 249-62.
10. Armour P, Hung A. Drawing down retirement wealth: interactions between social security wealth and private retirement savings [Internet]. 2017 [cited 2021 May 12]; Available from: file:///C:/Users/admin/AppData/Local/Temp/RAND_WR1165.pdf
11. Sherizadeh Y, Sarkhoshi R, Babazadeh T, Moradi F, Shariat F, Mirzaeian K. The quality of life and its related factors in the elderly covered by health care centers in Khoy city, Iran. Journal of Research in Clinical Medicine. 2016; 4(3): 139-45.
12. Roudi F, Azadi P, Mesgaran M. Iran’s population dynamics and demographic window of opportunity. Domestic Economy [Internet]. 2017[cited 2021 Jun 5]; Available from: https://stanford.app.box.com/s/hcv0k62dtajbxrz7dwxpwevb4ykx8nmz
13. De Leo D, Diekstra RF, Lonnqvist J, Lonnqvist J, Cleiren MH, Frisoni GB, et al. LEIPAD, an internationally applicable instrument to assess quality of life in the elderly. Behavioral Medicine. 1998; 24(1): 17-27.
14. Nabavi S, Shoja M, Mohammadi S, Rashedi V. Health-related quality of life in community-dwelling older adults of Bojnurd in 2014. Journal of North Khorasan University of Medical Sciences. 2014; 6(2): 433-9.
15. Aghayari hir T, Ghasemzade D, Ebrahimi Orang A. A study of the relationship between social support and health-related quality of life among elderly people in Tabriz. Journal of Gerontology. 2017; 2(1): 20–8. [Persian]
16. Taguchi CK, Teixeira JP, Alves LV, Oliveira PF, Raposo OFF. Quality of life and gait in elderly group. International Archives of Otorhinolaryngology. 2016; 20(3): 235-40.
17. Sartor-Glittenberg C, Lehmann S, Okada M, Rosen D, Brewer K, Bay RC. Variables explaining health-related quality of life in community-dwelling older adults. Journal of Geriatric Physical Therapy. 2014; 37(2): 83-91.
18. Uddin M, Soivong P, Lasuka D. Factors influencing quality of life of older persons in Bangladesh. MOJ Gerontology & Geriatrics. 2018; 3(2): 203-7.
19. Qadri S, Ahluwalia S, Ganai A, Bali S, Wani F, Bashir H. An epidemiological study on quality of life among rural elderly population of nothern India. Imternational Journal of Medical Science and Public Health. 2013; 2(3): 492.
20. Teston EF, Marcon SS. Comparative study of quality of life of elderly living in condominiums versus community dwellers. Investigaciony Educacion En Enfermeria. 2015; 33(1): 53–62.
21. Gutiérrez-Vega M, Esparza-Del Villar OA, Carrillo-Saucedo IC, Montañez-Alvarado P. The possible protective effect of marital status in quality of life among elders in a US-Mexico border city. Community Mental Health Journal. 2018; 54(4): 480-4.
22. Campos ACV, e Ferreira EF, Vargas AMD, Albala C. Aging, gender and quality of life (AGEQOL) study: factors associated with good quality of life in older Brazilian community-dwelling adults. Health and Quality of Life Outcomes. 2014; 12(1): 1-11.
23. Tajvar M, Arab M, Montazeri A. Determinants of health-related quality of life in elderly in Tehran, Iran. BMC Public Health. 2008; 8(1): 1-8.
24. Ibrahim N, Din NC, Ahmad M, Ghazali SE, Said Z, Shahar S, et al. Relationships between social support and depression, and quality of life of the elderly in a rural community in Malaysia. Asia-Pacific Psychiatry. 2013; 5: 59-66.
25. Akyol Y, Durmuş D, Doğan C, Bek Y, Cantürk F. Quality of life and level of depressive symptoms in the geriatric population. Archives of Rheumatology. 2010; 25(4): 165-73.
26. Kutubaeva RZ. Analysis of life satisfaction of the elderly population on the example of Sweden, Austria and Germany. Population and Economics. 2019; 3: 102.
27. Lauderdale SA, Sheikh JI. Anxiety disorders in older adults. Clinics in Geriatric Medicine. 2003; 19(4): 721-41.
28. Gunawan S, Chich-Jen S. Correlations between social engagement and quality of life of the elderly in China. Special Issues on Organization Innovation. 2014; 72(2): 105-18.
29. Jahangirizadeh P, Khodabakhshi Koolaee A. The relationship between self-concept, life satisfaction, and hope among retired and housewife older adults’ women. Journal of Gerontology. 2016; 1(1): 19–28. [Persian]
30. Jurakić D, Pedišić Ž, Greblo Z. Physical activity in different domains and health-related quality of life: a population-based study. Quality of Life Research. 2010; 19(9): 1303-9.