Effectiveness of Organic Waste Material Noise Dampening in Minimizing Noise Levels in Animal Feed Industry MachinerySeviana Rinawati, Tutug Bolet Atmojo, A.S. Dwi Saptati and Gatot CiptadiE3S Web Conf., 448 (2023) 03018DOI: https://doi.org/10.1051/e3sconf/202344803018