T. Paul Schultz. “4 - Social Value of Research and Technical Skills: Does It Justify Investment in Higher Education for Development? T. Paul Schultz”. Journal of Higher Education in Africa 2, no. 1 (January 14, 2004): 92–134. Accessed May 15, 2024. https://journals.codesria.org/index.php/jhea/article/view/1683.