Nabila A, Masriani, Hadi L, Tobing A, Budi FS. Influence of Solvent Polarity on Extract Yield and Phytochemical Profile of Kratom Leaves (Mitragyna speciosa). HJKK [Internet]. 2026 Sep. 14 [cited 2026 Sep. 20];14(4). Available from: https://e-journal.undikma.ac.id/index.php/hydrogen/article/view/22148