KIBU2022-03-042022-03-042021-07-15http://erepository.kibu.ac.ke/handle/123456789/4445SPC 122:Waves and geometrical physicsenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/SPC 122:Waves and geometrical physicsSPC 122:Waves and geometrical physicsOther