O Edobor, Salome, Ambrose Alli University, Ekpoma, Edo State, Nigeria.
O. Ekanem, E.
O. Idris, S, Ahmadu Bello University Zaria
O. Idris, S, AHMADU BELLO UNIVERSITY,ZARIA
O. N., Maitera, Department of Chemistry, Midibbo Adama University, Yola
O. Omale, Benjamin, Department of Chemistry, University of Jos. Plateau State, Nigeria
O.Idris, S., Department of Chemistry Ahmadu Bello University Zaria
Odukomaiya, Doyinsola, SHEDA SCIENCE AND TECHNOLOGY COMPLEX ABUJA NIGERIA
Ogboji, Joel, Abubakar Tafawa Balewa University Bauchi Nigeria
Ogunsipe, Abimbola, Federal University of Petroleum Resources, Effurun.
Olakunle Abayomi, Akinyode, Department of Chemical Sciences, Oduduwa University, Ipetumodu, PMB5533, Ile-Ife, Osun State
Olawumi, Olajide, Sheda Science and Technology Complex, Sheda-Abuja.
olawunmi, Olajide, Sheda Science and Technology Complex,PMB 186 FCT
Omar, Abdalazeem, Department of chemistry faculty of science, Sudan University of Science and Technology, Sudan
Omar, Abdalazeem, Department of chemistry, faculty of science, Sudan University of Science and Technology (Sudan)
Opeolu, Olutunji, Yaba College of Technology, Yaba-Lagos
Orijajogun, Joyce, Sheda science and Technology Complex (SHESTCO)
Osuagwu, Ifeanyi, SHEDA SCIENCE AND TECHNOLOGY COMPLEX, ABUJA, NIGERIA.

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