DR. PORAG KALITA, PH.D. Experimental Study on Automobiles Exhaust Emission Control. International Journal of Computer Engineering in Research Trends, [S. l.], v. 3, n. 6, p. 284–290, 2016. Disponível em: https://www.ijcert.org/index.php/ijcert/article/view/753. Acesso em: 14 may. 2026.