KIBU2022-05-252022-05-252021-10-05http://erepository.kibu.ac.ke/handle/123456789/5189SPH 443E:Measurements and instrumentationenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/SPH 443E:Measurements and instrumentationMeasurements and instrumentationSPH 443EOther