Ornsiri Unchittikul และ Rein Boondiskulchok. (2008) Planning system in tomato planting for processing factory. Chulalongkorn University:ม.ป.ท.Ornsiri Unchittikul และ Rein Boondiskulchok. 2008. Planning system in tomato planting for processing factory. ม.ป.ท.:Chulalongkorn University;Ornsiri Unchittikul และ Rein Boondiskulchok. Planning system in tomato planting for processing factory. ม.ป.ท.:Chulalongkorn University, 2008. Print.