Yusuf, M., Tambuwal, A.D., Hadi, B. A., and Tukur, A. 2016. “Enzymatic Hydrolysis and Bioethanol Production from Neem Tree Leaves (AzadirachtaIindica)”. International Journal of Science for Global Sustainability 2 (2):8. https://fugus-ijsgs.com.ng/index.php/ijsgs/article/view/250.