Wongthatsanekorn, W., C. Charoensiriwath, and N. Khummasorn. “Obstacles of Information Technology usage for Supply Chain Management in Thailand”. Engineering and Applied Science Research, vol. 36, no. 3, June 2012, pp. 185-94, https://ph01.tci-thaijo.org/index.php/easr/article/view/1745.