Nganchamung, T., M. G. Robson, and W. Siriwong. “Chemical Fertilizer Use and Acute Health Effects Among Chili Farmers in Ubon Ratchathani Province, Thailand”. Journal of Health Research, vol. 31, no. 6, Nov. 2017, pp. 427-35, https://he01.tci-thaijo.org/index.php/jhealthres/article/view/104252.