8. Asiedu, E., 2002. On the Determinants of Foreign Direct Investment to Developing Countries: Is Africa Different?. World Development, Great Britain, Volume 30, pp. 107-119. [DOI:10.1016/S0305-750X(01)00100-0]

9. Dekker, S., 2005. Port Investment Towards An Integrated Planning of Port Capacity. Ph.D Thesis, TRAIL Research School, Netherlands.

10. Dunning, J., 1998. Location and the Multinational Enterprise: A Neglected Factor. Journal of International Business Studies,UK, Volume 29, pp. 45-66. [DOI:10.1057/palgrave.jibs.8490024]

11. Eicher, T. S., Helfman, L. & Lenkoski, A., 2012. Robust FDI Determinants: Bayesian Model Averaging in the Presence of Selection Bias. Journal of Macroeconomics, United States, Volume 34, pp. 637-651. [DOI:10.1016/j.jmacro.2012.01.010]

12. Jones, J., 2005. Foreign Direct Investment and the Regional Economy. 1st Edition.

13. Onyeiwu, S., 2002. Analysis of FDI Flows to Developing Countries: Is the MENA Region Different?.

14. Teophilus Ndlozi, M., 2016. Port Investment Risk: Qualitative Review of South African Port Investment Valuation Framework. MSc Thesis, World Maritime University, Sweden.

15. UNCTAD., 2017. World Investment Report, Investment and Digital Economy, United Nations Publication.

16. World Bank. 2018. The World Bank Annual Report 2018 (English). Washington, D.C. : World Bank Group. http://documents.worldbank.org/curated/en/630671538158537244/The-World-Bank-Annual-Report-2018.