Gusdorf, Georges, author
Payot, 1966
Buku Teks
editor Philip Cam
Korean National Commission for UNESCO, 2003
Buku Teks
Paul Suparno
Kanisius, 1997
Buku Teks
Makarenko, A.S., author
Progress Publishers, 1965
Buku Teks
Wegener, Frank C.
Greeswood Press , 1957
Buku Teks