A.K, L., an G.H, and C. M.K. “Simultaneous Determination of Diazinon, Malathion and Quinalphos Pesticide Formulations by Gas Chromatography With an Electron Capture Detector”. Malaysian Journal of Science, vol. 25, no. 2, Aug. 2006, pp. 131-8, https://mjs.um.edu.my/index.php/MJS/article/view/8146.