Roongtanakiat, N. and Chairoj, P. (2001) “Vetiver Grass for the Remediation of Soil Contaminated with Heavy Metals”, Agriculture and Natural Resources. Bangkok, Thailand, 35(4), pp. 433–440. available at: https://li01.tci-thaijo.org/index.php/anres/article/view/240229 (accessed: 28 August 2026).