Malik, Saman, et al. “NEEDLE STICK INJURY AND HEPATITIS B VACCINATION AWARENESS AND PREVALENCE AMONG DENTAL COLLEGE STUDENTS IN RAWALPINDI”. Pakistan Oral & Dental Journal, vol. 39, no. 3, Oct. 2019, pp. 258-61, https://www.podj.com.pk/index.php/podj/article/view/431.