Neupane, Naba Raj, and Lalu Prasad Paudel. “Quality and Economic Aspects of Roofing Slates in TheTharpu Area, Tanahu”. Bulletin of the Department of Geology 14 (October 25, 2011): 43–50. Accessed May 5, 2024. https://www.nepjol.info/index.php/BDG/article/view/5438.