Obialor, M. C. “Effect of Government Human Capital Investment on Economic Growth in Sub-Saharan Africa: Evidence from Nigeria, South Africa and Ghana (1980-2013)”. International Journal of Asian Social Science, vol. 7, no. 4, Jan. 2017, pp. 328-39, doi:10.18488/journal.1/2017.7.4/1.4.328.339.