Tamrakar, S. R., and M. . Lamsal. “Study on Probable Aetiological Factors of Subfertility in a Tertiary Care Hospital”. Journal of Kathmandu Medical College, vol. 11, no. 3, Oct. 2022, pp. 142-7, https://jkmc.com.np/ojs3/index.php/journal/article/view/1096.