Tri, N. M., N. B. Loc, and N. V. Thang. “Studying of the Biological Characteristics of Vetiver - Vetiveria Zizanioides (L.) Nash in Thua Thien - Hue Province”. Academia Journal of Biology, vol. 32, no. 1, May 2012, pp. 44-50, doi:10.15625/0866-7160/v32n1.652.