Osman, Umi Abidah Noor, and Ramlee Ismail. “The Factors Influencing the Level of Well-Being Among Elderly in Selangor”. Management Research Journal 7 (December 26, 2018): 146–156. Accessed January 31, 2026. https://ejournal.upsi.edu.my/index.php/MRJ/article/view/1449.