Stuart, Dorothy Margaret
Methuen & Co. Ltd., 1956
Buku Teks
Longstaffe-Gowan, Todd
Yale University Press, 2001
Buku Teks
Langhans, Edward A.
Southern Illinois University Press, 1981
Buku Teks
Rowbottom, Ralph
Heinemann, 1973
Buku Teks
Andrews, Jonathan; Briggs, Asa; Porter, Roy; Tucker, Penny; Waddington, Keir
Routledge, 1997
Buku Referensi