Evaluation of Engine Parts Wear Using Nano Lubrication Oil in Agricultural Tractors. Global Journal of Science Frontier Research, [S. l.], v. 12, n. D8, p. 43–47, 2012. Disponível em: https://www.journalofscience.org/index.php/GJSFR/article/view/533. Acesso em: 14 aug. 2026.