Purinton, Carl E.
The Ronald Press, 1961
Buku Teks
edited by Robert E. Buswell, and Tomothy S. Lee
University of Hawai'i Press, 2006
Buku Teks
Butterfield, H., author
Charles Scribner's Sons, 1950
Buku Teks
Robertson, John M., author
Watts & Co, 1931
Buku Teks
Hakikat Kitabevi, 1993
Buku Teks