Istijanto, author
Gramedia Pustaka Utama, 2005
Buku Teks
Malhotra, Naresh K., author
Indeks, 2006
Buku Teks
Rangkuti, Freddy, author
Gramedia Pustaka Utama, 2001
Buku Teks
Rangkuti, Freddy, author
Gramedia Pustaka Utama, 1997
Buku Teks
Malhotra, Naresh K, author
Indeks, 2006
Buku Teks