Antherjanam, Gouri, Adarsh S, and MC Philipose. “A Comparison of Landslide Susceptibility Zonation of Poonjar Sub-Watershed, Kerala by Certainty Factor and Physically Based Methods”. Asian Journal of Engineering and Technology 3, no. 6 (December 17, 2015). Accessed December 3, 2021. https://ajouronline.com/index.php/AJET/article/view/3456.