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Buku Teks
Gralla, Preston, author
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Buku Teks
Eddings, Joshua, author
Ziff-Davis, 1994
Buku Teks
Shelly, Gary B., author
Course Technology Cengage Learning, 2012
Buku Teks
Nelson, Stephen L., author
Elex Media Komputindo , 1996
Buku Teks