Phurin Kongjam. (2008) An online adaptive testing system : a case study of the Revenue Department of Thailand. Mahidol University,:ม.ป.ท.Phurin Kongjam. 2008. An online adaptive testing system : a case study of the Revenue Department of Thailand. ม.ป.ท.:Mahidol University,;Phurin Kongjam. An online adaptive testing system : a case study of the Revenue Department of Thailand. ม.ป.ท.:Mahidol University, 2008. Print.