Isolation, Purification and Identification of Active Chemical Compound Lup-20(29)-ene-3, 28-diol (Betulin) from Tetradium daniellii Leaves and Study the hypoglycemic Effect on Rabbits. (2019). University of Thi-Qar Journal of Science, 6(1), 54-61. https://jsci.utq.edu.iq/index.php/main/article/view/45