Kongkeaw, Keattisak, Maneerat Khemkhao, and Apisedkorn Suwansaard. 2026. “Comparative Experimental Study between Hemp and Pineapple Fiber Wastes as Additional Materials to Improve Acoustic Performance in Concrete Blocks”. Applied Science and Engineering Progress 19 (1):7881. https://doi.org/10.14416/j.asep.2025.09.004.