Wilaiwan, W., and W. Siriwong. “Assessment of Health Effects Related to Organophosphate Pesticides Exposure Using Blood Cholinesterase Activity As a Biomarker in Agricultural Area at Nakhon Nayok Province, Thailand”. Journal of Health Research, vol. 28, no. 1, July 2017, pp. 23-30, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/92857.