Chauchard, Paul
Presses Universitaires de France, 1956
Buku Teks
Berry, David, author
Rajawali , 1982
Buku Teks
edited by Elgin F. Hunt, Jules Karlin
Macmillan, 1967
Buku Teks
Raymond F. Bellamy [and others]
McGraw-Hill, 1956
Buku Teks
Abbott, Andrew, author
The University of Chicago Press, 2001
Buku Teks