Worawat Sriudom และ Veerasak Likhitruangsilp. (2011) An application of lean concept to structural steel fabrication process : a case study of steel box girder fabrication for a bridge project. Chulalongkorn University:ม.ป.ท.Worawat Sriudom และ Veerasak Likhitruangsilp. 2011. An application of lean concept to structural steel fabrication process : a case study of steel box girder fabrication for a bridge project. ม.ป.ท.:Chulalongkorn University;Worawat Sriudom และ Veerasak Likhitruangsilp. An application of lean concept to structural steel fabrication process : a case study of steel box girder fabrication for a bridge project. ม.ป.ท.:Chulalongkorn University, 2011. Print.