“Comparative Physico-Chemical Analysis of Yamuna River, Delhi, at Okhla Barrage In Pre-Monsoon & Post-Monsoon Season: A Comparative Study of Water Quality in Yamuna River, Delhi” (2012) Journal of Advances and Scholarly Researches in Allied Education, 3(5), pp. 0–0. Available at: https://ignited.in/index.php/jasrae/article/view/4112 (Accessed: 15 June 2025).