Phataraphon Markmee. (2012) Pesticide risk reduction program to improve protective behavior and reduce health risk of pesticide use among rice farmers in Kong Krailat district, Sukhothai province. Chulalongkorn University:ม.ป.ท.Phataraphon Markmee. 2012. Pesticide risk reduction program to improve protective behavior and reduce health risk of pesticide use among rice farmers in Kong Krailat district, Sukhothai province. ม.ป.ท.:Chulalongkorn University;Phataraphon Markmee. Pesticide risk reduction program to improve protective behavior and reduce health risk of pesticide use among rice farmers in Kong Krailat district, Sukhothai province. ม.ป.ท.:Chulalongkorn University, 2012. Print.