Muhammad, M. U., Hadi, B. A., Muhammed, S., and Usman, F. “Thermal and Catalytic Conversion of Native Rice Husk into Bio-Oil and Biochar”. International Journal of Science for Global Sustainability, vol. 7, no. 1, Apr. 2021, p. 8, https://www.fugus-ijsgs.com.ng/index.php/ijsgs/article/view/55.