INVESTIGATION OF THE EFFECTS OF THE ADDITION OF TITANIUM DIOXIDE (TiO2) NANOPARTICLE FUEL ADDITIVE IN COTTON BIODIESEL ON ENGINE PERFORMANCE. Journal of Engineering Studies and Research, [S. l.], v. 30, n. 1, p. 31–38, 2024. DOI: 10.29081/jesr.v30i1.003. Disponível em: https://jesr.ub.ro/journal/article/view/430. Acesso em: 13 sep. 2025.