Measurement of the Sound Absorption Coefficient of Rice Straw (Oryza Sativa) Acoustic Material as Noise Dampener. Gravitasi [Internet]. 2024 Dec. 31 [cited 2026 Sep. 30];23(2):47-52. Available from: https://bestjournal.untad.ac.id/index.php/GravitasiFisika/article/view/17254