Anh, T. P., and N. K. Khoi. “Calamus Nambariensis Becc. (Arecaceae Schultz-sch.) - a New Species for the Flora of Vietnam”. Academia Journal of Biology, vol. 29, no. 3, Nov. 2014, pp. 50-52, doi:10.15625/0866-7160/v29n3.5387.