SELVAN, M Muthamil; MEHTA, C R. Noise Attenuation Characteristics of Exhaust Mufflers with Medium Size Farm Tractors. Journal of Agricultural Engineering, India, v. 45, n. 4, 2008. Disponível em: https://epubs.icar.org.in/index.php/JAE/article/view/14521. Acesso em: 6 jun. 2026.