Page, E. S., author
Cambridge University Press, 1976
Buku Teks
Jarett, Irwin M., author
John Wiley & Sons, 1983
Buku Teks
Yourdon, Edward, author
Prentice-Hall, 1972
Buku Teks
Bryant, Randal E., author
Prentice-Hall, 2003
Buku Teks
McGraw-Hill , 2005
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