Thitiworada Khumhan และ Sombat Sindhuchaod. (2013) Location selection and vehicle routing for tapioca starch production industries in north-eastern of thailand by using ant colony optimization. <i>KKU Engineering Journal</i>, <i>40</i>(3), 341-354.Thitiworada Khumhan และ Sombat Sindhuchaod. "Location selection and vehicle routing for tapioca starch production industries in north-eastern of thailand by using ant colony optimization.". KKU Engineering Journal 40 (2013):341-354.Thitiworada Khumhan และ Sombat Sindhuchaod. Location selection and vehicle routing for tapioca starch production industries in north-eastern of thailand by using ant colony optimization. Faculty of Engineering, Khon Kaen Univeristy:ม.ป.ท. 2013.