1. Becker G. S., 1960, “An Economic Analysis of Fertility,” Universities-National Bureau ed., Demographic and Economic Change in Developed Countries, Columbia University Press, 209–40, (Retrieved June 19, 2020, https://www.nber.org/chapters/c2387.pdf).
2. Bray, M., S. Zhan, C. Lykins, D. Wang, & O. Kwo, 2014, “Differentiated Demand for Private Supplementary Tutoring: Patterns and Implications in Hong Kong Secondary Education,” Economics of Education Review, 38: 24–37.
3. Census and Statistics Department Hong Kong, 1969, Hong Kong Statistics 1947–1967, Government Print.
4. 鍾庭燿,2010, 「家長対子女学習及教育開支意見調査」,(2020年6月29日取得,https://www.hkupop.hku.hk/chinese/report/parents10/index.html).
5. Coleman, J. S, 1967, “The Concept of Equality of Educational Opportunity,” The Johns Hopkins University, (Retrieved June 15, 2020, https://files.eric.ed.gov/fulltext/ED015157.pdf).