Duangchinda, Aittiphol, Bundit Anurugsa, and Natha Hungspreug. 2014. “The Use of Organophosphate and Carbamate Pesticides on Paddy Fields and Cholinesterase Levels of Farmers in Sam Chuk District, Suphan Buri Province, Thailand”. Science & Technology Asia 19 (1):39-51. https://ph02.tci-thaijo.org/index.php/SciTechAsia/article/view/17076.