U Birnin-Yauri, A., Kebbi State University of Science and Technology, Aliero, Nigeria
U. Augustine, Abel, Federal University of Lafia
U. Nkole, I, Ahmadu Bello University Zaria
UDDIN, NIZAM, M. B. Khalsa College, Indore - 452002, Madhya Pradesh, India
Umar, Ashiru, Kebbi State University of Science and Technology, Aliero, Nigeria
Umar, Shamsu, Usmanu Danfodiyo University Sokoto, Nigeria
Umar Birnin-Yauri, Abubakar, Kebbi State University of Science and Technology, Aliero, Nigeria
Umar BirninYauri, Abubakar, Kebbi State University of Science Technology
Uwhomagbejo Isaac, Rahab, Department of Chemistry Faculty of Natural Science University of Jos
Uzoeshi, Tochukwu, Department of Chemistry, University of Jos. Plateau State, Nigeria

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