Vo, Nga, Lien Do, Quy Pham, and Tuyet Nguyen. “Triterpenoids and Triterpenoid Saponins from Leaves of Bougainvillea Spectabilis”. Science & Technology Development Journal: Natural Sciences 6, no. 3 (September 30, 2022): 2306-2313. Accessed December 22, 2024. http://stdjns.scienceandtechnology.com.vn/index.php/stdjns/article/view/1197.