Toan Phan, N. H., Dieu Thuan, N. T., Hao, N. C. and Minh, C. V. (2014) “Seasonal effects on the 10-deacetylbaccatin III and 19-hydroxybaccatin III contents of the needles of Taxus wallichiana Zucc. in Lam Dong province”, Academia Journal of Biology, 29(4), pp. 49–51. doi: 10.15625/0866-7160/v29n4.5401.