Mittal, A., P. Agrawal, S. Tripathi, T. B. Singh, and S. K. Tripathi. “Assessment of Lead Levels in Maternal and Cord Blood at Jaunpur District of Uttar Pradesh, India”. Nepal Journal of Obstetrics and Gynaecology, vol. 5, no. 2, July 2011, pp. 32-37, https://nepjol.info./index.php/NJOG/article/view/5076.