Le, Q. P., Nguyen, T. H., Huynh, V. P., Nguyen, T. T. M., Tran, M. T., Dinh, M. H., and Ngo, K. S. 2020. “Optimization of culture parameters of selenium-enriched Ophiocordyceps sinensis biomass by response surface methodology”. International Journal of Agricultural Technology 16 (4):855-66. https://li04.tci-thaijo.org/index.php/IJAT/article/view/7177.