Achsan, Kanzul Fikri. 2021. “A Review on the Synthesis of Chitosan From Different Waterbodies Exoskeleton Species and Its Application in Treating Water Wastewater”. Progress in Engineering Application and Technology 2 (2): 721–731. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/2735.