Audio visual materials http://www.digital.lib.esn.ac.lk//handle/1234/15503 2026-04-21T12:45:24Z Bow and arrow http://www.digital.lib.esn.ac.lk//handle/1234/16979 Bow and arrow Used to hunt animals by the hunters community. 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. 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. 1990-01-01T00:00:00Z