Himyatul Hidayah, Adawiyah NR, Surya Amal. Pharmacological Activity of Betulinic Acid: A Systematic Literature Review. Eu Herb Ina [Internet]. 2023Aug.29 [cited 2024Nov.22];4(4):337-42. Available from: https://eurekabiomedical.com/index.php/EHI/article/view/94