The oxford dictionary of abbreviations
Oxford University Press, 1996
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Paxton, John
The Everyman dictionary of abbreviations
J.M. Dent & Sons, 1992
 Buku Referensi
Jones, David J.
The Australian dictionary of acronyms & abbreviations
Australia, Second Back Row Press
 Buku Referensi
Jones, David J.
The Australian dictionary of acronyms & abbreviations
Second Back Row Press, 1981
 Buku Teks SO
Webster's guide to abbreviations
Merriam-Webster, 1985
 Buku Referensi