Rukiah, Bunga Ayub, Amalia Oeripto, and Nurhayati Harahap. 2017. “A Comparison of Class I Malocclusion Treatment Outcomes With and Without Extractions Using an ABO Grading System for Dental Casts and Radiographs”. Dental Journal 50 (3):144-48. https://doi.org/10.20473/j.djmkg.v50.i3.p144-148.