Sipahutar, Selferida, Namora Lumongga Lubis, and Fazidah Agusliana Siregar. “The Association Between Maternal Knowledge, Family Support, and Exclusive Breastfeeding in Siborong Borong Community Health Center, North Tapanuli, North Sumatera”. Journal of Maternal and Child Health 4, no. 5 (September 26, 2019): 328–331. Accessed April 29, 2024. https://thejmch.com/index.php/thejmch/article/view/208.