Thitirat Nganchamung และ Wattasit Siriwong. (2016) Effectiveness of agrochemical safety program to prevent health effects among chili farmers in Ubon Ratchathani province, Thailand. Chulalongkorn University:ม.ป.ท.Thitirat Nganchamung และ Wattasit Siriwong. 2016. Effectiveness of agrochemical safety program to prevent health effects among chili farmers in Ubon Ratchathani province, Thailand. ม.ป.ท.:Chulalongkorn University;Thitirat Nganchamung และ Wattasit Siriwong. Effectiveness of agrochemical safety program to prevent health effects among chili farmers in Ubon Ratchathani province, Thailand. ม.ป.ท.:Chulalongkorn University, 2016. Print.