Nitin Pandey, and Dr. Manoj Kumar Pandey. 2018. “LITERATURE SURVEY OF GIS AND STUDY OF FILTERING TECHNIQUES FOR NOISE REMOVAL FROM REMOTELY SENSED IMAGES”. International Journal of Information Technology & Computer Sciences Perspectives 7 (02), 2715-30. https://itcsp.gfer.org/index.php/itcsp/article/view/11.