Siregar, Zakaria, Helena Siregar, and Dachrul Aldy. “Diseases of the Teeth of Children Attending the Outpatient Department in the Dr. Pirngadi General Hospital Medan”. Paediatrica Indonesiana 20, no. 7-8 (December 16, 2021): 169-76. Accessed May 18, 2024. https://www.paediatricaindonesiana.org/index.php/paediatrica-indonesiana/article/view/2878.