Ekere, P. O., , Obanor, A. I., , Amenaghawon, A., N., 2024. Engine Performance Evaluation of Biodiesel Produced from Watermelon using Modified Catalyst. Journal of Energy Technology and Environment. 6, 2 (Jun. 2024), 68–87. DOI:https://doi.org/10.5281/zenodo.11408439 .