Berryman, S. E. (2000). Hidden challenges to education systems in transition economies. World Bank, Europe and Central Asia Region.
Lua i Stíl Chicago (17ú heag.)Berryman, Sue E. Hidden Challenges to Education Systems in Transition Economies. Washington, D.C.: World Bank, Europe and Central Asia Region, 2000.
Lua MLA (9ú heag.)Berryman, Sue E. Hidden Challenges to Education Systems in Transition Economies. World Bank, Europe and Central Asia Region, 2000.