B. E. Agustina, B. Elya, R. C. Forestrania, and H. Husniati, “Phytochemical Profiling and In Vitro Lipoxygenase Inhibitory Activity of Three Kratom Leaf Varieties by GC–MS, HPLC, and LC–HRMS”, J. Multidiscip. Appl. Nat. Sci., vol. 6, no. 2, pp. 1090–1111, Apr. 2026.