Sidabutar, Sondang Sidabutar, and Candra Johan Waruwu. “Metode Ceramah Dan Media Leaflet Terhadap Pengetahuan Ibu Dalam Pencegahan ISPA”. Window of Health : Jurnal Kesehatan 5, no. 4 (October 27, 2022): 706-712. Accessed April 25, 2024. https://jurnal.fkmumi.ac.id/index.php/woh/article/view/16.