Aigbavboa, C.O., and W.D. Thwala. “Challenges Facing Black Owned Small and Medium Construction Companies: A Case Study of Nelspruit – Mbombela Municipality, South Africa”. Journal of Economics and Behavioral Studies, vol. 6, no. 10, Oct. 2014, pp. 771-8, https://doi.org/10.22610/jebs.v6i10.536.