References
- Montessori , M. 1965 . The Montessori method , New York : Shocken Books .
- Neill , A. S. 1960 . Summerhill: A radical approach to education , New York : Hart .
- Perkinson , H. J. 1984 . Learning from our mistakes: A reinterpretation of twentieth-century educational theory , Westport, CT : Greenwood Press .
- Perkinson , H. J. 1993 . Teachers without goals/ Students without purposes , New York : McGraw-Hill .
- Popper , K. 1979 . Objective knowledge , Rev. ed. , Oxford, United Kingdom : Oxford University Press .
- Rogers , C. 1983 . Freedom to learn , Rev. ed. , Columbus, OH : Merrill .