Muhammad, S., M. Khan, S. Wazir, and A. Bibi. “HISTOLOGICAL GRADING OF SQUAMOUS CELL CARCINOMA OF TONGUE IN RELATION TO SITE DISTRIBUTION”. Pakistan Oral & Dental Journal, Vol. 38, no. 4, Mar. 2019, pp. 428-31, https://podj.com.pk/index.php/podj/article/view/310.