http://ir.lib.ruh.ac.lk/handle/iruor/6887 Thu, 09 Apr 2026 04:19:36 GMT 2026-04-09T04:19:36Z http://ir.lib.ruh.ac.lk/handle/iruor/14175 EN 3101 Irrigation and Water resources Engineering -Structure and Essay Type Agriculture Fri, 01 Jul 2022 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/14175 2022-07-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/14174 EN 3101 Irrigation and Water resources Engineering Agriculture Fri, 01 Jul 2022 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/14174 2022-07-01T00:00:00Z