Charin Yenjai. (2000) The adjusted corrective constant factor for audiometric test. Mahidol University,:ม.ป.ท.Charin Yenjai. 2000. The adjusted corrective constant factor for audiometric test. ม.ป.ท.:Mahidol University,;Charin Yenjai. The adjusted corrective constant factor for audiometric test. ม.ป.ท.:Mahidol University, 2000. Print.