Hùng, Phạm Văn, and Nguyễn Văn Dũng. “Risk Warning Landslide In the Mountainous Districts of Quang Ngai Province”. Vietnam Journal of Earth Sciences 35, no. 2 (February 19, 2014): 107–119. Accessed October 20, 2021. https://vjs.ac.vn/index.php/jse/article/view/3653.