KIBU2019-10-082019-10-082018-10-08http://erepository.kibu.ac.ke/handle/123456789/1810PRD 221: Solid mechanics IenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/PRD 221Solid mechanics IOther