Surjono, Achmad. “Neonatal Mortality in Yogyakarta Rural Areas”. Paediatrica Indonesiana 28, no. 5-6 (July 15, 2019): 97-104. Accessed March 29, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2231.