Chattaong, P. and Jutamas, M. (2020) “Heavy metal accumulation in scallion (Allium cepa var. aggregatum) fields in Uttaradit Province, Thailand”, International Journal of Agricultural Technology, 16(1), pp. 27–36. available at: https://li04.tci-thaijo.org/index.php/IJAT/article/view/6156 (accessed: 15 September 2025).