Huu, Bui Chi, and Nguyen Kim Phi Phung. “Contribution to the Study on Chemical Constituents of Hedyotis Crassifolia L., (Rubiaceae)”. Vietnam Journal of Chemistry 45, no. 3 (September 1, 2014): 363. Accessed November 22, 2024. https://vjs.ac.vn/index.php/vjchem/article/view/4769.