http://ir.lib.ruh.ac.lk/handle/iruor/3282 2026-04-06T19:19:50Z http://ir.lib.ruh.ac.lk/handle/iruor/20803 IS 8113 - 2025 September - Engineering Ethics IS 2025-09-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/18969 IS 8201 - 2024 November - English for the Professional World IS 2024-11-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/16520 IS 8201 - 2023 September - English for the Professional World IS 2023-09-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/16391 IS 8201 - 2022 August - English for the Professional World IS 2022-08-01T00:00:00Z