University of Calcutta2026-09-242026-09-242026https://drive.google.com/file/d/1WteaNusjTMYH58ELMeE8om-Mt_nUo0rW/view?usp=drive_linkhttp://ssm.ndl.gov.in/handle/123456789/2058(Natural Resources, Biodiversity and Conservation)otherOther