“ISOLASI β-AMIRIN DARI KULIT BATANG PULAI BASUNG (Alstonia spatulata Bl.)” (2015) Jurnal Penelitian Farmasi Indonesia, 4(1), pp. 1–5. Available at: https://ejournal.stifar-riau.ac.id/index.php/jpfi/article/view/34 (Accessed: 5 February 2025).