Thuy Linh, Ngo Thi, et al. “Response Surface Optimized Extraction of Triterpenoids from Red Vietnamese Ganoderma Lucidum and Anticancer Evaluation of the Extract”. <i>Vietnam Journal of Science and Technology</i>, vol. 59, no. 2, Mar. 2021, pp. 158-6, doi:10.15625/2525-2518/59/2/15485.