Polyvinyl Alcohol (PVA) Partially Hydrolyzed Addition in Synthesis of Natural Hydrogel Carboxymethyl Cellulose (CMC) Based from Water HyacinthAsep Handaya Saputra and Nadia Huda AprilianaMATEC Web Conf., 156 (2018) 01007DOI: https://doi.org/10.1051/matecconf/201815601007