Waite, James (2004). "Reducing the Cost of Distance: Technological Change and the Globalization of New Zealand, 1960-2000". Global Economy Journal. 4 (1). doi:10.2202/1524-5861.1004.
Akwule, Raymond U. (1992). "Telecommunications in Kenya: Development and policy issues". Telecommunications Policy. 16 (7): 603–611. doi:10.1016/0308-5961(92)90025-K.