edited by Stephen May, Tariq Modood, Judith Squires
Cambridge, 2004
Buku Teks
Kahin, George McTurnan, author
Cornell University Press , 1952
Buku Teks
edited by Philip Warren Thayer
Johns Hopkins Press, 1956
Buku Teks
Cambridge University Press, 2009
eBooks
Webb, Keith, author
Molendinar Press, 1977
Buku Teks