Armstrong, Russell M.
Modular programming in cobol
John Wiley & Sons, 1973
Buku Teks
Morgan, Carroll, 1952-
Programming for specifications
Prentice-Hall, 1994
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Donovan, John J.
Systems programming
McGraw-Hill, 1972
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Basili, Victor R.
Structured programming: tutorial
IEEE, 1975
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Breckner, David
Principles of business computer programming
Prentice-Hall, 1970
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