S. Kassim, Muna, Muthana K. Al-Doory, and Ehsan Sabah M. Al-Ameen. “Experimental Investigation for The Effect of Inlet & Outlet Pipe Lengths on Noise Attenuation in a Muffler”. Journal of Engineering and Sustainable Development 16, no. 2 (June 1, 2012): 1–15. Accessed June 4, 2026. https://jeasd.uomustansiriyah.edu.iq/index.php/jeasd/article/view/1192.