“The Association between Social Activity and Health-Related Quality of Life in Yogyakarta, Indonesia”, J HEALTH PROMOT BEHAV, vol. 5, no. 2, pp. 87–95, Apr. 2020, Accessed: Jan. 26, 2026. [Online]. Available: https://www.thejhpb.com/index.php/thejhpb/article/view/202