The Quotation dictionary / edited by Robin Hyman
McMillan, 1962
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Spencer, Donald D.
Illustrated computer graphics dictionary / Donald D. Spencer
Camelot Publishing Company, 1993
 Buku Referensi
The new Palgrave : a dictionary of economics; Volume 1, A to D
edited by John Eatwell, Murray Milgate and Peter Newman
Macmillan, 1988
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Browning, D. C.
Everyman's dictionary of the quotations and proverbs / D. C. Browning
J.M. Dent , 1951
 Buku Referensi
Spencer, Donald D.
The computer programmer's dictionary and handbook / Donald D. Spencer
Ginn-Blaisdell, 1968
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