Kotler, Philip
Salemba Empat , 2001
Buku Teks
Kotler, Philip
John Wiley & Sons (Asia), 2000
Buku Teks
editor, SPES
Gramedia Pustaka Utama V, 1994
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Stefanis Nencyana
2010
UI - Skripsi Open
Kao, Raymond W.Y.
World Scientific, 2010
Buku Teks SO