Hai, L. H., L. M. X. Truc, and N. Q. Trung. “Evaluation of a Method of Separating Agarwood Absolute from Aquilaria Crassna Pulp by Soxhlet and Soaking for Fixative Substance in Blending Fragrance”. Asian Plant Research Journal, Vol. 7, no. 3, Mar. 2021, pp. 27-35, doi:10.9734/aprj/2021/v7i330156.