Okoroigwe, Edmund C, Zhenglong Li, Shantanu Kelka, Christopher Saffron, and Samuel Onyegegbu. 2015. “Bio-Oil Yield Potential of Some Tropical Woody Biomass”. Journal of Energy in Southern Africa 26 (2):33-41. https://doi.org/10.17159/2413-3051/2015/v26i2a2193.