Singhatong, S. “Acetylcholinesterase and Butyrylcholinesterase Levels of Healthy Volunteers Who Not Exposed to Pesticides in Chiang Mai Province”. Journal of Associated Medical Sciences, vol. 50, no. 2, May 2017, p. 168, https://he01.tci-thaijo.org/index.php/bulletinAMS/article/view/79685.