KIBU2022-03-072022-03-072021-01-13http://erepository.kibu.ac.ke/handle/123456789/4466SPH 426E:Material science and polymer physicsenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/SPH 426E:Material science and polymer physicsMaterial science and polymer physicsSPH 426ESPH 426E:Material science and polymer physicsMaterial science and polymer physicsSPH 426EOther