Prathumpo, Watcharaporn, and Patchara Sinloyma. 2021. “Determination of Organophosphate and Carbamate Pesticide Residue in Registered Vegetables of Nonthaburi Provincial Agricultural Extension Office”. Suan Dusit Graduate School Academic Journal 17 (2). Bankok, Thailand:151-68. https://so19.tci-thaijo.org/index.php/SDUGSAJ/article/view/415.