Alam, W., Khan, M. S., Khan, J., Bibi, R., Shabbir, A., Naeem, M., & Qazi, B. M. (2011). TREND OF FERTILITY POTENTIALS WITH INCREASING AGE IN PAKISTANI MALES. Journal of Postgraduate Medical Institute, 25(1). Retrieved from https://jpmi.org.pk/index.php/jpmi/article/view/1130