Ussanawarong, S. and Chirasirisap, K. (2013) “Study of Enzyme Cholinesterase Levels of Farmers in Kud – Kwang village”, Srinagarind Medical Journal, 8(4), pp. 215–219. available at: https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/13662 (accessed: 17 September 2026).