Somchai Punyajaroen และผู้แต่งคนอื่นๆ. (2006) The competencies of senior executive officers (SEOs) : a case study of Ministry of the Interior, Thailand. National Institute of Development Administration:ม.ป.ท.Somchai Punyajaroen และผู้แต่งคนอื่นๆ. 2006. The competencies of senior executive officers (SEOs) : a case study of Ministry of the Interior, Thailand. ม.ป.ท.:National Institute of Development Administration;Somchai Punyajaroen และผู้แต่งคนอื่นๆ. The competencies of senior executive officers (SEOs) : a case study of Ministry of the Interior, Thailand. ม.ป.ท.:National Institute of Development Administration, 2006. Print.