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O.A., Ehinola, Professor, Department of Geology, University of Ibadan, Ibadan, Oyo State, Nigeria
O.A., Falode, Professor, Department of Petroleum Engineering, University of Ibadan, Ibadan, Oyo State, Nigeria (Nigeria)
Ortiz-Valdivia, Yosheff Antonio, Professor, Department of Metallurgical Engineering and Environmental Engineering, National University of San AgustÃn de Arequipa, Arequipa, Peru
Osman, Hassan, Petro Energy E and P Co. Ltd., PDOC and PE Tower, Khartoum, Sudan (Sudan)
Otunniyi, Iyiola Olatunji, Federal University of Technology Akure, Nigeria (Nigeria)
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ISSN: 2231-3818