Phuong, V. X., D. T. Xuyen, D. Q. Vu, P. V. Phe, and D. V. Son. “A New Record of Species Radermachera Microcalyx C. Y. Wu & W. Yin (Bignoniaceae) for the Flora of Vietnam”. Academia Journal of Biology, vol. 34, no. 3, Oct. 2012, pp. 334-6, doi:10.15625/0866-7160/v34n3.2465.