Thongley T, Vansarochana C. Landslide susceptibility assessment using frequency ratio model at Ossey watershed area in Bhutan. Eng Appl Sci Res [internet]. 2021 Jan. 27 [cited 2026 Sep. 18];48(1):56-64. available from: https://ph01.tci-thaijo.org/index.php/easr/article/view/240477