Acoustic Material Capability of Pineapple (Ananas comosus) Leaf Fibre with PVA (Polyvinyl Alcohol) Adhesive as Noise Absorbent. Gravitasi [Internet]. 2024 Dec. 31 [cited 2026 Sep. 30];23(2):43-6. Available from: https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/17155