by Murutu, Cyprian, Onyango, Maurice S., Ochieng, Aoyi, Otieno, Fred A.O.
Published in Water S. A. (01.04.2012)

by Adeyemo, Josiah A., Olufayo, Olufisayo A., Nkwonta, Onyeka I., Otieno, Fred A.O., Ochieng, George M.
Published in South African journal of science (01.11.2010)

by Onyeka I. Nkwonta, Olufisayo A. Olufayo, George M. Ochieng, Josiah A. Adeyemo, Fred A.O. Otieno
Published in South African journal of science (01.11.2010)

by Nkwonta, Onyeka I., Olufayo, Olufisayo A., Ochieng, George M., Adeyemo, Josiah A., Otieno, Fred A.O.
Published in South African Journal of Science (01.11.2010)