1. Amin, M. E. (2005). Social science research: Conception methodology and analysis. Makerere University Printery.
2. Bhorat, H., & Oosthuizen, M. (2020). Jobs, economic growth, and capacity development for youth in Africa (Working Paper Series N° 336). Abidjan: African Development Bank.
3. Cerny, B. A., & Kaiser, H. F. (1977). A study of a measure of sampling adequacy for factor-analytic correlation matrices. Multivariate Behavioral Research, 12(1), 43–47. https://doi.org/10.1207/s15327906mbr1201_3
4. Cohen, J. W. (1998). Statistical power analysis for the behavioral sciences (2nd ed.). Lawrence Erlbaum Associates.
5. Creswell, J. W. (2008). Research design: Qualitative, quantitative and mixed methodsapproaches (3rd ed.). Sage.