The Effect of Health Education on Postpartum Mothers’ Knowledge About ExclusiveBreastfeeding at the Ongkaw Health Center, Sinonsayang District. JUIPERDO [Internet]. 2023 Jul. 31 [cited 2026 Aug. 6];11(01):68-80. Available from: https://ejurnal.jurkeppolkesdo.my.id/index.php/JUIPERDO/article/view/118