Vasachol Ngamsomchan. (2000) The effectiveness of health promoting personal hygiene program for grade 5-6 students in Uthaithani province. Mahidol University,:ม.ป.ท.Vasachol Ngamsomchan. 2000. The effectiveness of health promoting personal hygiene program for grade 5-6 students in Uthaithani province. ม.ป.ท.:Mahidol University,;Vasachol Ngamsomchan. The effectiveness of health promoting personal hygiene program for grade 5-6 students in Uthaithani province. ม.ป.ท.:Mahidol University, 2000. Print.