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Uyiosa Osarumen Ugiagbe, Oluyemi Olusegun Makinde and Frieyo Omowumi Omotoyosi. An assessment of the contributions of COVID 19 examination, revision and educational broadcast to stem students: A case study. World Journal of Advanced Research and Reviews, 2022, 16(1), 1222-1239. Article DOI: https://doi.org/10.30574/wjarr.2022.16.1.1063