Nauman Bari Khan, Muhammad Azhar, Amna Zaheer Kayani, and Ayesha Aslam. “ORAL HYGIENE ATTITUDE AND BEHAVIOR OF PRE-CLINICAL AND CLINICAL UNDERGRADUATE DENTAL STUDENTS”. Pakistan Oral & Dental Journal 39, no. 4 (January 1, 2020): 365-368. Accessed January 19, 2021. http://podj.com.pk/index.php/podj/article/view/492.