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Andi, 2008
Buku Teks
Goldman, James E., author
John Wiley & Sons, 2004
Buku Teks
Stallings, William, author
Prentice-Hall, 1994
Buku Teks
Irman Triharyanto, author
Universitas Indonesia, 2006
UI - Tesis (Membership)
Stallings, William, author
Salemba Teknika, 2000
Buku Teks