6Treiman, D. J. , & Yip, K. B. (1989). Educational and occupational attainment in 21 countries. In M. L. Kohn( ed. ), Cross-national Research in Sociology, 373-394. Newbury Park: Sage.
7Treiman, D. J. , Ganzeboom, H. B. , & Rijken, S. (2003). Educational expansion and educational achievement in comparative perspective. California Center for Population Research.
8Stevenson, D. L. , & Baker, D. P. (1992). Shadow education and allocation in formal schooling: Transition to university in Japan. American Journal of Sociology, 97 (6) , 1639-1657.
9Raftery, A. E. , & Hout, M. (1993). Maximally maintained inequality: Expansion, reform, and opportunity in irish education, 1921-75. Sociology of Education, 66 :41-62.
10Lucas, S. R. (2001). Effectively maintained inequality: Education transitions, tracks mobility, and social background effects. American Journal of Sociology, 106 ( 6) , 1642-1690.