Mustafa, MT. “Effectiveness of Extraction of Four First Premolars in the Treatment of Severe Bimaxillary Protrusion: Report of a Clinical Experiences”. Bangladesh Journal of Dental Research & Education 4, no. 1 (February 18, 2014): 31–38. Accessed October 3, 2025. https://www.banglajol.info/index.php/BJDRE/article/view/18015.