http://ir.lib.ruh.ac.lk/handle/iruor/17649 Tue, 07 Apr 2026 04:51:53 GMT 2026-04-07T04:51:53Z http://ir.lib.ruh.ac.lk/handle/iruor/4223 BOT 3162 - Forestry Department of Botany Fri, 01 Nov 2019 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/4223 2019-11-01T00:00:00Z http://ir.lib.ruh.ac.lk/handle/iruor/2251 BOT3162 - Forestry Department of Botany Faculty of Science Tue, 01 Aug 2017 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/2251 2017-08-01T00:00:00Z