Osu, Bright O.
Osu, Bright O. (Nigeria)
Othip, F.H., Umm Al-Quraa University
Othman, Sumayah Ghaleb
Ouannas, Adel
Ouarghi, Khalid, King Khalid University
Ouassissou, Antoine Filankembo, Marien Ngouabi University Brazzaville, Congo
Ouassou, Idir
Oudetallah, Jamal, Irbed national university
Oyedepo, Taiye
Oyelami, F. H., Afe babalola university, Ado Ekiti
Oyelami, F.H.
Oyewumi, A.A., Ladoke Akintola University of Technology. Ogbomoso. Oyo state. Nigeria.
Ozdemir, M. Kemal, Inonu University
Ozkan, Umut Mutlu
Ozoigbo, G. E.
Ozoigbo, Gerald
Oğur, Oğuz, Giresun University

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