http://ir.lib.ruh.ac.lk/handle/iruor/21093 Tue, 04 Aug 2026 01:40:05 GMT 2026-08-04T01:40:05Z http://ir.lib.ruh.ac.lk/handle/iruor/21129 OCG 2243: Physical Oceanography Department of Oceanography and Marine Geology Tue, 01 Apr 2025 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/21129 2025-04-01T00:00:00Z