Shan, Darren, author
Gramedia Pustaka Utama, 2003
Buku Teks
Lubis, Mochtar, 1922-2004, author
Yayasan Obor Indonesia , 1993
Buku Teks
Asiza, Fahri
Bandung : Beranda Hikmah, 2004,
Buku Teks
Sandford, John, author
Serambi, 2005
Buku Teks
Sitompul, Dennis, author
Universitas Indonesia, 2002
UI - Skripsi (Membership)