Modelling esterification of palm kernel, neem, and jatropha seed oils using a simplex lattice approachEseoghene Ivrogbo Danie, Paturi Uma Maheshwera Reddy, Samuel Olusegun David, Modestus O. Okwu and Iyanda Falade KazeemEPJ Web Conf., 345 (2026) 01049DOI: https://doi.org/10.1051/epjconf/202634501049