edited by Melvin G. Blase
Iowa State University Press, 1971
Buku Teks
Norton, George W., author
McGraw-Hill, 1993
Buku Teks
Mellor, John W., author
Cornell University Press, 1966
Buku Teks
edited by Takekazu Ogura
Fuji Publishing, 1967
Buku Teks
Booth, Anne, author
Allen and Unwin, 1988
Buku Teks