F. Simba and  L. Trojer and  N.H. Mvungi and  B.M. Mwinyiwiwa and  E.M. Mjema,  Rural Connectivity Technologies Cost Analysis.   journal   = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology.
    November 2009, vol. 35(11). 2052 - 2058
    [viewed 17 April 2021]. Available from: https://publications.waset.org/pdf/1481.