Loice J. Kipkiror. “Extra-Terrestrial Impact Craters (ETICs) and Related Geomorphology- A Case Study of Silali Basin, Kenya”. Global Journal of Human-Social Science, vol. 19, no. B2, May 2019, pp. 1-23, https://socialscienceresearch.org/index.php/GJHSS/article/view/2879.