CHEMICAL CONSTITUENTS OF THE RHIZOMES OF DRYNARIA BONII COLLECTED IN LANG SON PROVINCE. JMM-NIMM [Internet]. 2026 Aug. 7 [cited 2026 Aug. 10];28(3):pp. 136 - 141. Available from: http://tapchiduoclieu.vn:8080/index.php/jomm/article/view/346