Monchawan Weerasombut และ Suthas Ratanakuakangwan. (2010) Key performance indicators improvement in internal process : a case study of nitrocellulose manufacturer. Chulalongkorn University:ม.ป.ท.Monchawan Weerasombut และ Suthas Ratanakuakangwan. 2010. Key performance indicators improvement in internal process : a case study of nitrocellulose manufacturer. ม.ป.ท.:Chulalongkorn University;Monchawan Weerasombut และ Suthas Ratanakuakangwan. Key performance indicators improvement in internal process : a case study of nitrocellulose manufacturer. ม.ป.ท.:Chulalongkorn University, 2010. Print.