1. Africa Calling;Victor Mbarika;IEEE Spectrum,2006
2. Exploring the usage and impact of "transformational" mobile financial services: the case of M-PESA in Kenya;Olga Morawczynski;Journal of Eastern African Studies,2009
3. Poor People Using Mobile Financial Services: Observations on Customer Usage and Impact from M-PESA;Olga Morawczynski;CGAP Brief Online,2009
4. Kenya Telecommunications Sector Performance Review: 1999-2003;Muriuki Mureithi;Research ICT Africa Report,2004