N. Ahmad, H. Mahmood, and S. A. Jafri, “QUALITY ASSURANCE OF VARI-SOURCE HIGH DOSE RATE (HDR) BRACHYTHERAPY- REMOTE AFTER LOADER AND COST EFFECTIVENESS OF VARI-SOURCE HDR- BRACHYTHERAPY: NORI, ISLAMABAD EXPERIENCE”, The Nucleus, vol. 41, no. 1-4, pp. 35–40, Jul. 2020.