Keshav M, P. R. S. T. L. N. K. “Fuzzy AHP, RS & GIS Based Hybrid Approach for Airport Site Selection-Kothagudem District”. International Journal of Advanced Science and Technology, Vol. 29, no. 1, Jan. 2020, pp. 1645 -3, http://sersc.org/journals/index.php/IJAST/article/view/3731.