manager haiyul jurnal. ISOLASI β-AMIRIN DARI KULIT BATANG PULAI BASUNG (Alstonia spatulata Bl.). JPFI [Internet]. 2015 Sep. 1 [cited 2024 Apr. 29];4(1):1-5. Available from: https://ejournal.stifar-riau.ac.id/index.php/jpfi/article/view/34