Tessema Amente, and Ejigu Olana. 2017. “Selection, Optimization and Compensation Strategy and Social Support As a Predictors of Elders Psychological Well-Being. The Case of West Shewa Zone, Oromia, Ethiopia”. Global Journal of Human-Social Science 17 (A4):21-26. https://socialscienceresearch.org/index.php/GJHSS/article/view/2275.