Khanan Tanakulchaitavee และผู้แต่งคนอื่นๆ. (2017) The development of an appropriate quality assurance system for the u-shaped plastic shopping bag process. Mahidol University:ม.ป.ท.Khanan Tanakulchaitavee และผู้แต่งคนอื่นๆ. 2017. The development of an appropriate quality assurance system for the u-shaped plastic shopping bag process. ม.ป.ท.:Mahidol University;Khanan Tanakulchaitavee และผู้แต่งคนอื่นๆ. The development of an appropriate quality assurance system for the u-shaped plastic shopping bag process. ม.ป.ท.:Mahidol University, 2017. Print.