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Oduro, Ibok N, Kwame Nkrumah University of Science and Technology (Ghana)
Ogita, Shinjiro, Prefectural University of Hiroshima, Shobara, Japan (Japan)
Ogu, Gideon Ikechukwu, Federal University Lokoja (Nigeria)
Okantah, Derick (Ghana)
Okolo, Judith Chukwuebinim, Department of Environmental Biotechnology and Bio-conservation, National Biotechnology Development Agency, Abuja, Nigeria. (Nigeria)
Okorley, Ernest Laryea, University of Cape Coast (Ghana)
Oladejo, Afolabi Ola, Federal College of Forestry Jos, Plateau State Nigeria. (Nigeria)
Olivier, Yao N’Guessan, Université Félix HOUPHOUËT-BOIGNY (Côte d'Ivoire)
Ombeni, Justin Birhashwirwa, Institut Supérieur des Techniques Médicales de Bukavu (Congo, the Democratic Republic of the)
Omotesho, Olubunmi Abayomi, Department of Agricultural Economics and Farm Management, University of Ilorin, Kwara State, Nigeria (Nigeria)
Onabanjo, Oluseye Olusegun, Federal University of Agriculture (Nigeria)
Onabanjo, Oluseye Olusegun, Federal University of Agriculture, Abeokuta (Nigeria)
Ong Gim Ming, Sandy, MOH Research Sdn Bhd; Wellous Sdn Bhd; MOH Pharmaceutical Technologies Sdn Bhd (Malaysia)
Onuwa, Godfrey, Federal College of Forestry Jos, Plateau State Nigeria. (Nigeria)
Oscalani, Queny, University of Jember
Osei, Collins Kwabena
Osei, Jones Ebenenzer, Akenten Appiah-Menka University of Skills Training and Entrepreneurial Development (AAMUSTED), Mampong Ashanti-Ghana. (Ghana)
Osei-Nyarko, Joash (Ghana)
Ouertani, Emna, Higher School of Agriculture, Mograne (ESAM) Rural Economics Laboratory, National Agronomic Research Institute of Tunisia (INRAT) University of Carthage, Tunis, Tunisia (Tunisia)
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