Crouch, Harold, author
Pustaka Sinar Harapan, 1999
Buku Teks
Anas Urbaningrum, author
RajaGrafindo Persada, 1999
Buku Teks
Singh, Bilveer, 1956-, author
Gramedia Pustaka Utama, 1996
Buku Teks
Nasution, Abdul Haris, 1918-2000, author
Pembimbing, 1955
Buku Teks
Yahya A. Muhaimin, author
Gajah Mada University Press, 2002
Buku Teks