Koch, Adrienne, author
Modern Library, 1944
Buku Teks
Dewey, John, author
Endang, 1956
Buku Teks
Caldwell, Lynton Keith, author
University of Chicago Press, 1944
Buku Teks
Rice, Howard C., author
Princeton University Press, 1976
Buku Referensi
Moscow, Henry
American Heritage Publishing Co, 1960
Buku Teks