M. F. Umunna, M. C. Ndukwu, and A. B. Eke, “PREDICTIVE MODELING AND PROCESS OPTIMIZATION OF BIODIESEL PRODUCTION FROM WATERMELON SEED OIL USING ARTIFICIAL NEURAL NETWORKS (ANN)”, Int. J. Renew. Energ & Environ, vol. 4, no. 2, pp. 462–475, Jul. 2026, doi: 10.5281/zenodo.21384535.