M, Usen, s., and Enoidem Usoro. “Administrative Constraints That Affect the Performance of Business Studies in Senior Secondary School Certificate Examination. A Case Study of Schools in Abak Urban, Akwa Ibom State: The LEAJON: An Academic Journal of Interdisciplianry Studies. ”. Afrischolar Discovery Repository (Annex), June 2011, https://doi.org/10.60951/afrischolar-222.