Composites polyvinyl alcohol filled with nanocellulose from oil palm waste by formic acid hydrolysisSri Aprilia, Nasrullah Razali, Yanna Syamsuddin, Abdul H.P.S. Khalil and Dedek SyafrinaMATEC Web Conf., 268 (2019) 04012DOI: https://doi.org/10.1051/matecconf/201926804012