Le, T., K. Vu, Q.-T. Nguyen, P. Huynh, K.-L. Huynh, K. Tong, T. Pham, A. Tran Nguyen Minh, V. C. Nguyen, and T. K. Phung. “Fractionation of Lignin Produced from the Earleaf Acacia Tree by Sequential Industrial Organic Solvents”. VNUHCM Journal of Science and Technology Development, Vol. 24, no. 1, Feb. 2021, pp. 840-6, doi:https://doi.org/10.32508/stdj.v24i1.2509.