Taqdees Iftikhar, Jehan Ara, Humaira Arshad, Nadra Sultana, T. I. J. A. H. A. N. S. “Evaluation of Levonorgestrel Subdermal Implant As Long Term Reversible Contraceptive”. Journal of Rawalpindi Medical College, vol. 22, no. 2, June 2018, http://journalrmc.com/index.php/JRMC/article/view/895.