ENT4252 Refrigeration & Air Conditioning http://ir.lib.ruh.ac.lk/handle/iruor/7085 2026-05-03T13:09:20Z 2026-05-03T13:09:20Z ENT4252 - Refrigeration and Air Conditioning Department of Engineering Technology http://ir.lib.ruh.ac.lk/handle/iruor/19177 2025-02-28T05:16:34Z 2024-12-01T00:00:00Z ENT4252 - Refrigeration and Air Conditioning Department of Engineering Technology 2024-12-01T00:00:00Z ENT 4252 - Refrigeration and Air Conditioning Department of Engineering Technology http://ir.lib.ruh.ac.lk/handle/iruor/16132 2025-02-18T08:23:32Z 2023-12-01T00:00:00Z ENT 4252 - Refrigeration and Air Conditioning Department of Engineering Technology 2023-12-01T00:00:00Z