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Ukpaka, Chukwuemeka Peter, Professor, Department of Chemical/Petrochemical Engineering, Rivers State University Port Harcourt, Rivers State, Nigeria. (Nigeria)
Ukpaka, Chukwuemeke. P, Professor, Department of Chemical/Petrochemical Engineering, Rivers State University Port Harcourt, Rivers State, (Nigeria)
Ukpaka, Chukwuemeke. P, Associate Professor, Department of Chemical/Petrochemical Engineering, Rivers State University of Science and Technology, Port Harcourt (Nigeria)
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