Lalida Chuayruk และผู้แต่งคนอื่นๆ. (2006) Electronic government procurement : effectiveness of policy implementation. National Institute of Development Administration:ม.ป.ท.Lalida Chuayruk และผู้แต่งคนอื่นๆ. 2006. Electronic government procurement : effectiveness of policy implementation. ม.ป.ท.:National Institute of Development Administration;Lalida Chuayruk และผู้แต่งคนอื่นๆ. Electronic government procurement : effectiveness of policy implementation. ม.ป.ท.:National Institute of Development Administration, 2006. Print.