http://ir.lib.ruh.ac.lk/handle/iruor/21377 Wed, 19 Aug 2026 14:08:55 GMT 2026-08-19T14:08:55Z http://ir.lib.ruh.ac.lk/handle/iruor/21384 FDN 1142: Bio Mathematics FMST Tue, 01 Oct 2024 00:00:00 GMT http://ir.lib.ruh.ac.lk/handle/iruor/21384 2024-10-01T00:00:00Z