Thongley, T. and Vansarochana, C. (2021) “Landslide susceptibility assessment using frequency ratio model at Ossey watershed area in Bhutan”, Engineering and Applied Science Research, 48(1), pp. 56–64. available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/240477 (accessed: 18 September 2026).