Dai Hoang, V., Thai Tran, H. and Tien Nguyen, T. 2019. A GIS-based Spatial Multi-criteria Approach for Flash Flood Risk Assessment in the Ngan Sau-Ngan Pho Mountainous River Basin, North Central of Vietnam: DOI: 10.32526/ennrj.18.2.2020.11. Environment and Natural Resources Journal. 18, 2 (Dec. 2019), 110–123.