Romana Yaqoob, Nazia Jahan, Alia Ahmed, Anum Moiz, and Usman Ibrahim. “INTEROBSERVER AGREEMENT IN RADIOGRAPHIC ASSESSMENT OF PERIAPICAL STATUS”. Pakistan Oral & Dental Journal, Vol. 40, no. 4, Dec. 2020, pp. 252-4, https://podj.com.pk/index.php/podj/article/view/595.