Okafor, Kingsley C., Department of Community Medicine & PHC Bingham University, Karu, Nasarawa State, Nigeria
Okafor, Kingsley Chinedu, Department of Community Medicine & PHC Bingham University, Karu, Nasarawa State, Nigeria
Okafor, Ogochukwu Esther, Department of Cooperative Economics & Management Nnamdi Azikiwe University, Awka
Okafor, Ogochukwu Esther, Department of Cooperative Economics & Management, Nnamdi Azikiwe University, Awka, Nigeria (Nigeria)
Okanlawon, Rufus Aderenle, Department of Civil Engineering, Federal University of Technology, Akure
Oke, I. A., Civil Engineering Department, Obafemi Awolowo University, Ile-Ife, Nigeria
Okechukwu , C. C.
Okenu, S. C.
Okenwa, Ezinne Jennifer, Department of Applied Biology and Biotechnology Enugu State University of Science and Technology
Okogie, Obehi Hilda, Department of Community Health, College of Medicine, University of Benin, Benin City, Edo State, Nigeria
Okolandzaud, Oba Péa, Faculté des Sciences et techniques, Université Marien Ngouabi, République du Congo
Okolle, Justin N. , Institute of Agricultural Reseach ffor Development
Okolle, N. J.
Okonkwo, Austin, Enugu State University of Science and Technology, Department of Geology and Mining, Faculty of Physical sciences, PMB 01660, Agbani, Enugu State, Nigeria
Okonkwo, Prosper Ifeanacho, Department of Community Medicine & PHC Bingham University, Karu, Nasarawa State, Nigeria
Okonta, Christian, I.
Okorie, Christopher
Okoro, Emmanuel E., World Bank Africa Center of Excellence, Center for Oilfield Chemicals Research, University of Port Harcourt, Port Harcourt, Nigeria
Okoro, Ruth Loveth, Department of Home Science and Management, Rivers State University, Port Harcourt
Okoroma, F. N., Kenneth Dike Library, University of Ibadan, Nigeria
Okoye, Patrich-Anthony, Nnamdi Azikiwe University, Awka
Okoye, Peter Chibuike,  Adekunle Ajasin University, Akungba Akoko, Nigeria.
Okpa, Stella E., Department of Nursing, College of Nursing Sciences, University of Nigeria Teaching Hospital Enugu, Enugu State, Nigeria
Okuneye, J. O., Federal College of Animal Health & Production Technology, Moor Plantation, Ibadan
Okwuchukwu, Chika

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