“KEBUTUHAN PERAWATAN ORTODONTI BERDASARKAN INDEX OF ORTHODONTIC TREATMENT NEED PADA USIA REMAJA 15 – 17 TAHUN”. e-GiGi 3, no. 2 (August 5, 2015). Accessed July 29, 2026. https://ejournal.unsrat.ac.id/v3/index.php/egigi/article/view/8770.