Krasaesindhu, P. (1986) “Atrazine Residue in Soil of the Pakchong Series ”, Thai Agricultural Research Journal, 4(2), pp. 121–127. available at: https://li01.tci-thaijo.org/index.php/thaiagriculturalresearch/article/view/245178 (accessed: 1 October 2026).