Issaravanich, Somchai, Chanida Palanuvej, Tanasorn Tunsaringkarn, Anusorn Rungsiyothin, Niran Vipunngeun, Anchalee Chuthaputti, and Nijsiri Ruangrungsi. “Pharmacognostic Specification of Vetiveria zizanioides Roots in Thailand”. Journal of Health Research 22, no. 1 (November 15, 2018): 9–14. accessed September 30, 2026. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/155452.