Widjanarti, Maria P., Ari Probandari, . Sumardiyono, and . Sunarto. “The Acoustic Performance of Natural Composites in Reducing Stress Levels: Textile Industry”. Civil Engineering Journal 9, no. 6 (June 1, 2023): 1312–1328. Accessed June 29, 2025. https://civilejournal.org/index.php/cej/article/view/4097.