Mockler, Robert
Prentice-Hall, 1989
Buku Teks
Septia Rahmalina, author
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Davis, Gordon B., author
Business One Irwin, 1993
Buku Referensi
Mockler, Roberty
Prentice Hall Internasional, 1989
Buku Teks
Computer Technology Research, 1993
Buku Referensi