“Evaluation of Waiting Time for Drug Services at the Umban Sari Rumbai Health Center Pharmacy Installation”. JISIP (Jurnal Ilmu Sosial dan Pendidikan) 8, no. 4 (November 18, 2024): 2738–2742. Accessed June 18, 2026. https://ejournal.mandalanursa.org/index.php/JISIP/article/view/7460.