Electricity access in Nigeria: Viability of off-grid photovoltaic system. - Uduak S. Akpan; Salisu R. Isihak; Ye-Obong N. Udoakah (AFRICON, 2013)

A sustainable approach to Municipal Solid Waste management in Southern Nigeria. - Ye-Obong N. Udoakah; Uduak S. Akpan (GHTC, 2013)