OBETA, Perpetual Oby; OGBONNA, Joel; OKORO, Emmanuel Emeka; ANTHONY, John. Evaluation of Physicochemical and Spectroscopic Properties of Delonix regia, Jatropha curcas and Hura crepitans Oil Extracts. Direct Research Journal of Engineering and Information Technology, [S. l.], v. 13, n. 1, p. 49–62, 2025. Disponível em: https://journals.directresearchpublisher.org/index.php/drjeit/article/view/311. Acesso em: 31 may. 2026.