http://ir.lib.ruh.ac.lk/handle/iruor/6359 Wed, 13 May 2026 21:34:40 GMT 2026-05-13T21:34:40Z http://ir.lib.ruh.ac.lk/handle/iruor/12231 ZOO 4083 - Ornithology Science Thu, 01 Apr 2021 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/12231 2021-04-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/4164 ZOO 4083 - Ornithology Department of Zoology Fri, 01 Nov 2019 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/4164 2019-11-01T00:00:00Z