Analysis of The Effect of Soundproofing on Ship Engines Based on Composite Materials Made from Tofu Dregs (Glycine Max L Merill). EKSAKTA [Internet]. 2024 Sep. 30 [cited 2026 Aug. 1];25(03):302-10. Available from: https://eksakta.ppj.unp.ac.id/index.php/eksakta/article/view/436