Kittipongse Sumipan และผู้แต่งคนอื่นๆ. (2004) Major factors affecting the implementation of the 1984 Thai sugar policy. National Institute of Development Administration:ม.ป.ท.Kittipongse Sumipan และผู้แต่งคนอื่นๆ. 2004. Major factors affecting the implementation of the 1984 Thai sugar policy. ม.ป.ท.:National Institute of Development Administration;Kittipongse Sumipan และผู้แต่งคนอื่นๆ. Major factors affecting the implementation of the 1984 Thai sugar policy. ม.ป.ท.:National Institute of Development Administration, 2004. Print.