Leach, Steve
Macmillan Presss, 1994
Buku Teks
Jazuli Juwaini
Al-'itishom, 2007
Buku Teks
Sumber Saparin, author
Ghalia Indonesia, 1977
Buku Teks
Dharma Setyawan Salam, author
Djamabatan, 2004
Buku Teks
Gunarto Suhardi, author
Universitas Atma Jaya, 2006
Buku Teks