Krulee, Gilbert K.
Computer processing of natural language
Prentice-Hall, 1991
 Buku Teks SO
Computer science: basic language programming
John Wiley & Sons, 1970
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Chapelle, Carol A
Assessing language through computer technology
Cambridge University Press, 2006
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Deitel, Harvey M., 1945-
Introduction to computer programming : with the BASIC language
Prentice-Hall, 1977
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Keegel, John C.
The language of computer programming in English / John C. Keegel
Regents Publishing Company, 1976
 Buku Teks SO