http://ir.lib.ruh.ac.lk/handle/iruor/6828 Wed, 08 Apr 2026 23:42:53 GMT 2026-04-08T23:42:53Z http://ir.lib.ruh.ac.lk/handle/iruor/20770 CC11202 English 1 Agriculture Thu, 01 Jan 2026 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/20770 2026-01-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/7675 CC 1103 English Agriculture Sat, 01 Jan 2022 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/7675 2022-01-01T00:00:00Z