Gunawan, Lilian, and Nurhayati Masloman. “Correlation of Blood Lead Level and Intelligence Quotient in Children”. Paediatrica Indonesiana 54, no. 3 (June 30, 2014): 127-31. Accessed November 22, 2024. https://paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/407.