Iqbal, J., R. Awan, M. A. Parvez, A. ul Haq, A. A. Gardezi, and S. Irfan. “EFFECTIVENESS OF TEXT MESSAGE INSTRUCTIONS ON ORAL HYGIENE FOR ORTHODONTIC PATIENTS”. Pakistan Oral & Dental Journal, Vol. 37, no. 2, June 2017, pp. 278-82, https://podj.com.pk/index.php/podj/article/view/97.