Dat, Nguyen Quoc, Nguyen Hieu Cuong, Vu Ngoc Long, and Luu Hong Truong. “Billolivia Cadamensis (Gesneriaceae), a New Species from Central Vietnam”. Academia Journal of Biology 38, no. 4 (December 28, 2016): 492–496. Accessed May 17, 2024. https://vjst.net/index.php/vjbio/article/view/8837.