Duangjai Boonyarit. (2004) The development of a self-directed learning package based on computer-assisted in struction in the subject of coaching for supervisors. Mahidol University,:ม.ป.ท.Duangjai Boonyarit. 2004. The development of a self-directed learning package based on computer-assisted in struction in the subject of coaching for supervisors. ม.ป.ท.:Mahidol University,;Duangjai Boonyarit. The development of a self-directed learning package based on computer-assisted in struction in the subject of coaching for supervisors. ม.ป.ท.:Mahidol University, 2004. Print.