Taokaenchan, N., K. Areesrisom, P. Areesrisom, V. Maifaey, J. Philadee, and S. Sateinperakul. “Contents of Phenolic, Flavonoid and Antioxidant Activity of Dendrobium spp., in Maejo University, Chiang Mai Province”. YRU Journal of Science and Technology, vol. 7, no. 1, Oct. 2021, pp. 21-28, https://li01.tci-thaijo.org/index.php/yru_jst/article/view/248315.