Jones, Gareth R.
Contemporary management
McGraw-Hill, Irwin, 2006
 Buku Teks
Meserve, Bruce B.
Contemporary mathematics
Prentice-Hall, 1972
 Buku Teks
Mueller, Francis J.
Contemporary algebra
Dickenson , 1966
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Taylor, Howard E.
Contemporary trigonometry
McGraw-Hill, 1973
 Buku Teks
Contemporary Africa
edited by Bisheshwar Prasad
Asia Public House, 1960
 Buku Teks