Audio visual materials http://www.digital.lib.esn.ac.lk//handle/1234/15503 Tue, 21 Apr 2026 12:42:16 GMT 2026-04-21T12:42:16Z Bow and arrow http://www.digital.lib.esn.ac.lk//handle/1234/16979 Bow and arrow Used to hunt animals by the hunters community. Tue, 01 Jan 1980 00:00:00 GMT http://www.digital.lib.esn.ac.lk//handle/1234/16979 1980-01-01T00:00:00Z Video cassette http://www.digital.lib.esn.ac.lk//handle/1234/16978 Video cassette Used to play and see video recordings. Mon, 01 Jan 1990 00:00:00 GMT http://www.digital.lib.esn.ac.lk//handle/1234/16978 1990-01-01T00:00:00Z Audio cassette http://www.digital.lib.esn.ac.lk//handle/1234/16977 Audio cassette Used to play and hear audio recordings. Mon, 01 Jan 1990 00:00:00 GMT http://www.digital.lib.esn.ac.lk//handle/1234/16977 1990-01-01T00:00:00Z