Raman, Kokilla Vani, and Dr. Emedya Murniwaty Samsudin. 2021. “Sound Absorption Performance of Oil Palm Empty Fruit Bunch Fibreboards Using Different Fibre Lengths”. Recent Trends in Civil Engineering and Built Environment 3 (1): 824-32. https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/3134.