Krieger, Morris
Word processing on the UNIX system
McGraw-Hill, 1985
Buku Teks SO
Waite, Mitchell
Word processing primer
McGraw-Hill, 1982
Buku Teks SO
Shaw, Harry
Dictionary of problem word and expressions
McGraw-Hill, 1975
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Flavell, Roger
Dictionary of word origins
Kyle Cathie, 1995
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Shipley, Joseph T.
Dictionary of word origins
Philosophical Library, 1945
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