Lubis, Yusuf Hanafi. “Pelaksanaan Program Imunisasi BCG Terhadap Partisipasi Masyarakat Di Posyandu Seroja”. TROPHICO: Tropical Public Health J. 3, no. 1 (March 31, 2023): 19–24. Accessed October 6, 2025. https://talenta.usu.ac.id/trophico/article/view/11385.