1. Altbach, P.H. and Levy, D.C. (2005) Private Higher Education: A Global Revolution, Rotterdam/Taipei: Sense Publishers.
2. Becker, G. (1994) Human Capital: A Theoretical and Empirical Analysis with Special Reference to Education, 3rd edn. Chicago: The University of Chicago Press.
3. Bedard, K. (2001) ‘Human capital versus signalling models: University access and high school dropouts’, Journal of Political Economy 109 (4): 749–775.
4. Brown, S. and Sessions, J.G. (2004) ‘Signaling and Screening’, in G. Jones and J. Jones (eds.) International Handbook on the Economics of Education, Cheltenham, UK and Northampton, MA: Edward Elgar Publishing, pp. 58–100.
5. Chan, S.J. and Yang, C.H. (2015) ‘The Employment of College Graduate: Changing Wage in a Massified Higher Education’, in J.C. Shin, G.A. Postiglione and F. Huang (eds.) Mass Higher Education Development in East Asia: Strategy, Quality, and Challenges, London and New York: Springer.