og, Lory Liza D. Bulay-, D.Eng, and Reggie C. Gustilo, PhD. “Manufacture of Sound Absorbing Material from Recycled Rice Straws for Room Acoustics Improvements”. International Journal of Engineering and Technology 7, no. 4.16 (November 27, 2018): 184–187. Accessed May 27, 2025. https://mail.sciencepubco.com/index.php/IJET/article/view/22883.