Lindawati Ismail and  Mohd. Imran Ghazali and  Shahruddin Mahzan and  Ahmad Mujahid Ahmad Zaidi,  Sound Absorption of Arenga Pinnata Natural Fiber.   journal   = {International Journal of Materials and Metallurgical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2010, vol. 43(7). 438 - 440
    [viewed 08 August 2022]. Available from: https://publications.waset.org/pdf/8239.