Dr. Sanjay Kumar Singh and Hemant Kumar Verma. “Geographical Analysis of the Problem of Water Runoff and Dirty Water Disposal of Gorakhpur City”. International journal of economic perspectives 16, no. 5 (March 31, 2022): 171–177. Accessed November 24, 2024. https://ijeponline.com/index.php/journal/article/view/381.