A. A, Rafiu, and Luka C. D. 2018. “Effect of Aqueous Sweet Potato Leaf Extract and Metformin on Some Biochemical Parameters in Streptozotocin- Induced Diabetic Rats”. American Scientific Research Journal for Engineering, Technology, and Sciences 39 (1):82-92. https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/3748.