Ahmad F, Ghaffari M, Basri M, Abdul Rahman M. Spectroscopic Data of 3-O-Acetyl-betulinic Acid: An Antitumor Reagent. ajc [Internet]. 2010 Mar. 30 [cited 2024 Nov. 25];22(4):3186-92. Available from: https://asianpubs.org/index.php/ajchem/article/view/11531