Sarker, MH, SAM Arif Ul Haque, M Rahman, M Akter, and S Ali. “Integrated Use of Remote Sensing, GIS and GPS Technology for Monitoring the Environmental Problems of Shyamnagar”. Journal of Environmental Science and Natural Resources 12, no. 1-2 (February 11, 2021): 11–20. Accessed January 19, 2022. https://www.banglajol.info/index.php/JESNR/article/view/51979.