1. Aglietta, M. (2018). Money: 5,000 years of debt and power (D. Broder, Trans.). Verso.
2. Amano, I. (2011). The origins of Japanese credentialism (2nd ed.). Trans Pacific Press.
3. Bagnall, N. F. (1994). The International Baccalaureate in Australia and Canada: 1980–1993. University of Melbourne.
4. Bagnall, N. F. (2005). The International Baccalaureate in Australia and New Zealand in the 21st century. Change: Transformations in Education, 8(1), 110–123.
5. Baker, D. P. (2011). Forward and backward, horizontal and vertical: Transformation of occupational credentialing in the schooled society. Research in Social Stratification and Mobility, 29(1), 5–29. https://doi.org/10.1016/j.rssm.2011.01.001