Meethom, W. and Pornchaivivat, S. (2012) “Design of Decision Support System for Multimodal Transportation Route Selecting between Thai and Vietnam”, Engineering and Applied Science Research, 38(2), pp. 187–195. available at: https://ph01.tci-thaijo.org/index.php/easr/article/view/1611 (accessed: 11 May 2025).