Cao, D., P. Vu, and P. Quach. “Effect of Growth Factors on the Production of Biomass of the Hairy Root of Urena Lobata”. VNUHCM Journal of Natural Sciences, Vol. 1, no. T3, Sept. 2017, pp. 16-25, doi:https://doi.org/10.32508/stdjns.v1iT3.459.