Hawthorne G, Davidson N, Quinn K, et al. Issues in conducting cross-cultural research: implementation of an agreed international procotol designed by the WHOQOL Group for the conduct of focus groups eliciting the quality of life of older adults. Quality of Life Research. 2006;15(7):1257-1270.
Acree LS, Longfors J, Fjeldstad AS, et al. Physical activity is related to quality of life in older adults. Health and Quality of Life Outcomes. 2006;4(1):37.
Güler N, Akal Ç. Quality of life of elderly people aged 65 years and over living at home in Sivas, Turkey. Turk Geriatri Dergisi: Turkish Journal of Geriatrics. 2009:12,181-189.
Bowling A. Measuring health: A review of quality of life measurement scales. Milton Keynes: Open University Press; 1991.
Whoqol G. The World Health Organization quality of life assessment (WHOQOL): position paper from the World Health Organization. Social Science & Medicine. 1995;41(10):1403-1409.
Alexandre TdS, Cordeiro RC, Ramos LR. Factors associated to quality of life in active elderly. Revista de Saúde Pública. 2009;43(4):613-621.
Rapley M. Quality of life research: A critical introduction. Thousand Oaks: Sage; 2003.
Tiara SD. Mekanisme survival pensiunan semen gresik [Survival Mechanism of Retired Semen Gresik]. Surabaya, Indonesia: Universitas Airlangga; 2012.
Dinsi V, Setiati E, Yuliasari E. Ketika pensiun tiba [when retirement comes]. Jakarta: Wijayata Media Utama; 2006.
Handayani Y. Post power syndrome pada pegawai negeri sipil yang mengalami masa pensiun [Post power syndrome to a retired employee]. 2012; http://www.gunadarma. ac.id/library/articles/graduate/psychology/.../Artikel_10503211.pdf. Accessed January, 2016.
Hasanah A. The relationship between post power syndrome with loneliness in the elderly. 2011; http://papers.gunadarma.ac. id/files/journals/5/articles/13772/public/13772-38758-1-PB.pdf. Accessed January, 2016.
Asbi EA. Faktor yang mempengaruhi masa pensiun [Factor affecting retirement], Medan: Universitas Sumatra Utara; 2003.
Miller CA. Nursing for wellness in older adults. Philadelphia: Lippincott Williams & Wilkins; 2009.
Aldwin CM, Spiro Iii A, Park CL, Birren JE. Health, behavior, and optimal aging: A life span developmental perspective. Handbook of the Psychology of Aging. 2006;6:85-104.
Rohmah AIN, Bariyah K. Kualitas hidup lanjut usia [Quality of life elderly]. Jurnal Keperawatan. 2015;3(2).
Ismael S, Sastroasmoro S. Dasar-dasar metodologi penelitian klinis [Basic clinical research methodology]. Jakarta: Universitas Indonesia; 2010.
Kuntoro H. Metode sampling dan penentuan besar sampel [Sampling method and determination of sample size]. Surabaya: Pustaka Melati; 2008.
Brüggemann BR, Garlipp P, Haltenhof H, Seidler K-P. Quality of life and social support as outcome characteristics of a psychiatric day hospital. German Journal of Psychiatry. 2007;10(3):58-68.
Nurhayati T. Analysis of various factors associated with post power syndrome occurrences in the elderly in the Moro Krembangan. Surabaya: Universitas Airlangga; 2008.
Sholihin M, Ratmono D. Analisis SEM-PLS dengan WarpPLS 3.0 untuk hubungan nonlinier dalam penelitian sosial dan bisnis [Analysis of SEM-PLS with WarpPLS 3.0 for non-linear relationship in social and business research] . Yogyakarta: Penerbit Andi; 2013.
Utomo T, Prasetyo E. Well-being pada lansia yang tinggal di Panti Werdha atas dasar keputusan sendiri [Well-being in elderly living at Panti Werdha on their own decision]. Experientia: Jurnal Psikologi Indonesia. 2012;1(1):57-69.
Hoyer WJ, Rybash JM, Roodin PA. Adult development and aging. New York: McGraw-Hill; 1999.
Lenny E. Quality of elderly life. Surabaya, Indonesia: Universitas Surabaya; 2011.
Maryam S. Mengenal usia lanjut dan perawatannya (Getting to know the elderly and its treatment). Jakarta: Penerbit Salemba; 2008.
Nugroho W. Gerontik and geriatric nursing, Issue 3. Jakarta EGC Medical Book Publishers; 2008.
Stanley M, Beare PG. Buku ajar keperawatan gerontik (Gerontik Nursing Teaching Book): Jakarta: EGC Medical Book Publishers; 2007.
Papalia DE, Sterns H, Feldman RD, Camp C. Adult development and aging. New York: McGraw-Hill; 2006.
Brown I, Nagler M, Renwick R. Quality of life in health promotion and rehabilitation: conceptual approaches, issues, and applications. Thousand Oaks: Sage Publications; 1996.
Santrock JW. Life-span development. Dubuque, IA: Brown & Benchmark Publishers; 2006.
Sutarto JT, Ismul Cokro C. Pensiun bukan akhir segalanya: Cara cerdas menyiasati masa pensiun [Retirement is not the end: Smart ways to deal with retirement]. Jakarta: Gramedia Pustaka Utama; 2008.