The oxford dictionary of quotation
editor, Angela Partington
Oxford University Press, 1992
 Buku Referensi
Dictionary
London: Tiger Books International, 1994,
 Buku Referensi
International encyclopedia of the social sciences : social science quotation, volume 19
David L. Sills, Robert K. Merton, editors
MacMilan Publishing, 1991
 Buku Referensi
Bartlett, John
Familiar quotation a collection of passages phrases and proverbc traced to their sources in ancient and modern literature by
Boston Little, Brown and Company 1955
 Buku Referensi
Dictionary of computing
Oxford University Press, 1990
 Buku Referensi