Mohd Norfaizal Ghazalli, Muhammad Shafie Md Sah, Mazidah Mat, Khadijah Awang, Mohd Azwan Jaafar, Razali Mirad, et al. Leaf Anatomy and Micromorphology Characteristics of Ketum [Mitragyna speciosa (Korth.) Havil.] (Rubiaceae). tlsr [Internet]. 2021 Mar. 31 [cited 2025 Apr. 20];32(1):107–117. Available from: https://ejournal.usm.my/tlsr/article/view/tlsr_vol32-no-1-2021_7