Nasher, N. M. R. ., and M. Y. . Islam. “COVID-19 Lockdown Effects on Water Turbidity of a Highly Polluted Lake in Dhaka City, Bangladesh”. National Geographical Journal of India, vol. 67, no. 2, Mar. 2022, pp. 122-33, https://ngji.in/index.php/ngji/article/view/149.