Mukhlisin, M., Idris, I., Salazar, A. S., Nizam, K., & Taha, M. R. (2013). GIS Based Landslide Hazard Mapping Prediction in Ulu Klang, Malaysia. Journal of Mathematical and Fundamental Sciences, 42(2), 163-178. https://doi.org/10.5614/itbj.sci.2010.42.2.7