Lubis, Yusuf Hanafi. “Pelaksanaan Program Imunisasi BCG Terhadap Partisipasi Masyarakat Di Posyandu Seroja”. Tropical Public Health Journal 3, no. 1 (March 31, 2023): 19-24. Accessed November 24, 2024. https://talenta.usu.ac.id/trophico/article/view/11385.