Bukar, G. ., J. M. . Suraj, A. . Usman, A. M. . Ibrahim, and M. S. . Yusuf. “Assessing the Validity and Reliability of Standard Examination As a Yardstick for Admission Exercise in Higher Institutions of Learning in Yobe State, Nigeria”. GSC Advanced Research and Reviews, vol. 9, no. 1, Oct. 2021, pp. 148-56, doi:10.30574/gscarr.2021.9.1.0202.