achmad, anisyah, E. P. Yunita, S. Winarsih, and R. K. Illahi. “Improving the Service of Posyandu Lansia (geriartri Health Service) at Sumbersuko and Pandanrejo Village, Sub-District Wagir, Malang, East Java”. Berdikari: Jurnal Pengabdian Masyarakat Indonesia, Vol. 1, no. 3, Apr. 2019, pp. 113-7, https://jurnaljpmi.com/index.php/jpmi/article/view/25.