“Antioxidan Activity from Methanol Extract of Kratom Leaves (Mitragyna Speciosa) Maseration Result Using The DPPH Method: Aktivitas Antioksidan Ekstrak Metanol Daun Kratom (Mitragyna Speciosa) Hasil Maserasi Menggunakan Metode DPPH”. 2023. Journal Pharmasci (Journal of Pharmacy and Science) 8 (2): 137-42. https://doi.org/10.53342/pharmasci.v8i2.357.