Application of Chitosan from Corbula Faba Hinds shells as a Bio-Coagulant for River Water TreatmentKindriari Nurma Wahyusi, Ardika Nurmawati and Lucky Indrati UtamiE3S Web Conf., 328 (2021) 01009DOI: https://doi.org/10.1051/e3sconf/202132801009