Page, G. Terry
International dictionary of education by and
New York Kogan Page 1977
 Buku Referensi
Page, G. Terry
International dictionary of education
New York, Kogan Page, 1977
 Buku Referensi
Dictionary of education
edited by Harold Benjamin
McGraw-Hill, 1959
 Buku Referensi
Fox, James R.
Dictionary of international and comparative law
Oceana Publications, Inc, 1992
 Buku Teks
Fox, James R.
Dictionary of international & comparative law
Oceana Publication, 1992
 Buku Referensi