“Human Capital Development in Education and Economic Growth: A Granger Causality Test in Pre- and Post-Deregulated Nigerian Economy (1970-2011)”, wajofel, vol. 3, no. 1, pp. 93–108, Jun. 2013, Accessed: Mar. 27, 2026. [Online]. Available: https://wajofel.org/index.php/wajofel/article/view/305