KIBU2022-04-122022-04-122021-02-01http://erepository.kibu.ac.ke/handle/123456789/4894MAT 424:ODE IIIenAttribution-NonCommercial-ShareAlike 3.0 United Stateshttp://creativecommons.org/licenses/by-nc-sa/3.0/us/MAT 424:ODE IIIODE IIIMAT 424Other