Oxford University Press , 1982
Buku Teks
edited by Stephan Haggard, Chung H. Lee and Sylvia Maxfield
Cornell University Press, 1993
Buku Teks
Kitchen, Richard L., author
John Wiley & Sons, 1986
Buku Teks
Gedes & Grosset, 2001
Buku Referensi
Hicks, Ursula K., author
Clarendon Press, 1961
Buku Teks