Simangunsong, Syahperlan, Soeroyo Machfudz, and Mei Sitaresmi. “Accuracy of the Indonesian Child Development Pre-Screening Questionnaire”. Paediatrica Indonesiana 52, no. 1 (March 30, 2012): 6-9. Accessed May 6, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/291.