Scalable Synthesis of Hide Substance–Chitosan–Hydroxyapatite: Novel Biocomposite from Industrial Wastes and Its Efficiency in Dye Removal oleh Sandipan Chatterjee, Arka Gupta, Tamal Mohanta, Rangeet Mitra, Debasis Samanta, Asit Baran Mandal, Mousumi Majumder, Ritu Rawat, Nayan Ranjan Singha