American Educational Research Journal Nr.1.2.3.4 1978

American Educational Research Journal Nr.1.3.4 1979

American Educational Research Journal Nr.1.2.3.4 1980

American Educational Research Journal Nr.1.2.3.4 1981

American Educational Research Journal Nr.1.2.3.4 1982

American Educational Research Journal Nr.1.2.3 1983

American Educational Research Journal Nr.1.2.3.4 1984

American Educational Research Journal Nr.1.2.3.4 1985

American Educational Research Journal Nr.1.2.3.4 1986

American Educational Research Journal Nr.1.2.3.4 1987

American Educational Research Journal Nr.1.4 1988

American Educational Research Journal Nr.1.2.3.4 11989