Gutzwiller, Kathryn J., author
Blackwell, 2007
Buku Teks
edited by Ian Ousby
Cambridge University Press, 1993
Buku Referensi
edited by Ian Qusby
Cambridge University Press, 1988
Buku Referensi
Murphy, Emmett C., author
Gramedia Pustaka Utama, 1998
Buku Teks
Barnet, Sylvan, author
Batsford Academic and Educational, 1985
Buku Teks