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Orugba, H. O.; Oghenejoboh, K. M.; Oghenejoboh, U. M.; Ohimor, O. E. Production of Biodiesel from a Novel Combination of Raphia Africana Kernel Oil and Turtle Shell (Centrochelys Sulcata) Heterogenous Catalyst. J. Hum. Earth Future 2021, 2, 258-268.