Kaewfak, Kwanjira, Veeris Ammarapala, and Chayakrit Charoensiriwath. “Fuzzy AHP Approach for Route Selection in Multimodal Transportation: The Case of Coal Industry in Thailand”. Science & Technology Asia 26, no. 1 (March 16, 2021): 84-95. Accessed April 23, 2021. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/223463.