Fatimah. “Knowledge of Mothers Who Have Babies about Impact Providing Formula Milk in the Village Sihitang Subdistrict Southeastern Padangsidimpuan”. International Journal of Public Health Excellence (IJPHE) 3, no. 1 (July 27, 2023): 86–89. Accessed May 15, 2024. https://ejournal.ipinternasional.com/index.php/ijphe/article/view/424.