1D·Rust The Democratic Tradition and the Evolution of Schooling in Norway, Greenwood Press, New York Westport, connecticut London, 1989.
2Peter W·Cookson, Jr·Man R·Sadovnik and Susan F · Senel, International Handbook of Education Reform, Greenwood Press, New York:, Westport, 1993.
3Ivar Biorndal, the National Council for Upper Secondary Education in Norway, Oslo, 1987.
4The Royal Minister of Education, Research and Church Affairs: Core Curriculum for Primary, Secondary. and Adult Education in Norway,1993.
5Royal Ministry of Education, Research and Church Affairs: National Report Presented to the 45th Session of the International Conference on Education, Geneva,1996.