Hashmat, S., Z. Zulfania, M. Shahid, S. T. Ahmed, H. Noor, and H. A. Q. Memon. “EFFECTIVENESS OF TEACHING ECG STRATEGY IN PRECLINICAL YEARS: STUDENTS’ PERSPECTIVE”. Pakistan Journal of Medicine and Dentistry, vol. 8, no. 1, Apr. 2019, p. 5, http://ojs.zu.edu.pk/ojs/index.php/pjmd/article/view/131.