Ciira, Wa Maina; Muhia, Asaph; Opondo, James(IST-Africa 2016 Conference Proceedings Paul Cunningham and Miriam Cunningham (Eds) IIMC International Information Management Corporation, 2016, 2016)
Mwema, Fredrick Madaraka; Mburu, Ngugi J.; Mutunga, Nzyoki Boniface; Kalama, Fondo Charo(Int. Journal of Engineering Research and Applications, 2015-12)