“Evaluation of the Elderly Health Service Program in the Pusako Community Health Center Work Area, Siak Regency”. Jurnal kesehatan komunitas (Journal of community health) 9, no. 2 (August 10, 2023): 391–401. Accessed September 13, 2026. https://jurnal.htp.ac.id/index.php/keskom/article/view/1302.