Muhamad, Nurfashareena, and Shaharuddin Ahmad. “Analisis Frekuensi Kejadian Bencana Tanah Runtuh Di Negara-Negara Sedang Membangun: Frequency Analysis of Landslide Catastrophe in Developing Nations”. GEOGRAFI 2, no. 2 (December 27, 2018): 128–138. Accessed May 6, 2024. https://ejournal.upsi.edu.my/index.php/GEOG/article/view/487.