NajahAsrul Ainun, Ikhwanul Qiram, and Dewi Sartika. “Pengaruh (Matrik) Pola Susunan Serat Terhadap Karakterisktik Peredam Suara Berbahan Sabut Kelapa”. V-MAC (Virtual of Mechanical Engineering Article) 5, no. 2 (November 17, 2020): 21 - 26. Accessed April 24, 2024. https://ejournal.unibabwi.ac.id/index.php/vmac/article/view/1039.