Uddin และ Imar. (1991) Factors associated with promotion of sanitary latrines utilization of the villagers in Khon Kaen province, Thailand. Mahidol University,:ม.ป.ท.Uddin และ Imar. 1991. Factors associated with promotion of sanitary latrines utilization of the villagers in Khon Kaen province, Thailand. ม.ป.ท.:Mahidol University,;Uddin และ Imar. Factors associated with promotion of sanitary latrines utilization of the villagers in Khon Kaen province, Thailand. ม.ป.ท.:Mahidol University, 1991. Print.