Chanpen Mitrabhakdi และ Rein Boondiskulchok. (2008) Improvement of inventory control system. Chulalongkorn University:ม.ป.ท.Chanpen Mitrabhakdi และ Rein Boondiskulchok. 2008. Improvement of inventory control system. ม.ป.ท.:Chulalongkorn University;Chanpen Mitrabhakdi และ Rein Boondiskulchok. Improvement of inventory control system. ม.ป.ท.:Chulalongkorn University, 2008. Print.