Khurram Jah Zafar, et al. “ASSESSMENT OF KNOWLEDGE AND ATTITUDE TOWARDS RADIATION HAZARDS AMONG DENTAL STUDENTS AND HOUSE OFFICERS AT TERTIARY CARE HOSPITAL”. Pakistan Oral & Dental Journal, vol. 39, no. 4, Jan. 2020, pp. 352-5, https://podj.com.pk/index.php/podj/article/view/486.