Schwartz, Benjamin
Harper Torchbooks and The Academy Library, 1967
Buku Teks
Brandt, Conrad
George Allen and Unwin, 1959
Buku Teks
Houn, Franklin W.
Prenrice-Hall , 1973
Buku Teks
Gardner, John
Macmillan, 1982
Buku Teks
Hsiung, James Chieh, 1935-
Praeger Publishers, 1970
Buku Teks