Lamarque, Peter, author
Blackwell Publishing, 2009
Buku Teks
Martinez, Julio A.
Greenwood Press, 1985
Buku Teks
Duke University Press,
Majalah, Jurnal, Buletin
Attridge, Derek, author
Routledge, 2004
Buku Teks
edited by Harold C. Gardiner
Devin-Adair Co., 1949
Buku Teks