Nizam, G. S., S. Shaheed, and S. A. Awan. “Effect of Deep Overbite and Curve of Spee on Wits Appraisal With Bisecting and Functional Occlusal Planes”. Pakistan Orthodontic Journal, vol. 6, no. 1, July 2014, pp. 27-31, https://www.poj.org.pk/index.php/poj/article/view/92.