Sarun Widtayakornbundit และ Boon-Anan Phinaitrup. (2019) A study of leadership in educational institutions under the dual system of private vocational education administration : its effects on personnel's behaviors. National Institute of Development Administration:ม.ป.ท.Sarun Widtayakornbundit และ Boon-Anan Phinaitrup. 2019. A study of leadership in educational institutions under the dual system of private vocational education administration : its effects on personnel's behaviors. ม.ป.ท.:National Institute of Development Administration;Sarun Widtayakornbundit และ Boon-Anan Phinaitrup. A study of leadership in educational institutions under the dual system of private vocational education administration : its effects on personnel's behaviors. ม.ป.ท.:National Institute of Development Administration, 2019. Print.