KIBU2023-03-292023-03-292022-11-17http://erepository.kibu.ac.ke/handle/123456789/9063SPM 312:Materials testing and evalutionenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/SPM 312:Materials testing and evalutionSPM 312Materials testing and evalutionOther