Hall, Ford P.
McGraw-Hill Book Company,Inc., 1949
Buku Teks
Dimock, Marshall Edward
Henry Holt, 1953
Buku Teks
Watson, Donald Stevenson
Houghton Miffiln, 1960
Buku Teks
Dersal, William R. Van
Harper & Brother, 1962
Buku Teks
Steiner, George Albert, 1912-
Random House, 1980
Buku Teks