M. Lionthina, G. Wiwaha, S. Gondodiputro, H. Sukandar, I. F. D. Arya, and D. K. Sunjaya, “Elderly Quality of Life and Its Predictors in Chronic Disease Management Program: Indonesian Version of WHOQOL-BREF and WHOQOL-OLD”, MKB, vol. 52, no. 1, pp. 28–34, Mar. 2020.