Hutchins, Robert M.
Center for the study of Democratic Institutions, 1963
Buku Teks
Battle, J.A.
Harper & Row , 1968
Buku Teks
The University , Iowa City, 1912
Buku Klasik
Tooley, James, author
Continuum Studies Education Policy, 2000
Buku Teks
Smith, L. Glenn, author
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Buku Teks