Erman, Erman, Wayan Retayasa, and Soetjiningsih Soetjiningsih. “Clinical Gestational Age Assessment in Newborns Using the New Ballard Score”. Paediatrica Indonesiana 46, no. 3 (October 18, 2016): 97-101. Accessed November 22, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/909.