Hawley, Amos H., author
The University of Chicago Press, 1986
Buku Teks
D. Dwidjoseputro, author
Erlangga, 1994
Buku Teks
Tuan, Yi-fu
Columbia University, 1990
Buku Teks
Bookchin, Murray
Black Rose Books, 1991
Buku Teks
The Association for Supervision and Curriculum Development, 1978
Buku Teks