Peach, David A.
McGraw-Hill , 1985
Buku Teks
Jamieson, Stuart
Cornell University Press , 1957
Buku Teks
edited by Paul K. Edwards
Blackwell , 1995
Buku Teks
Bercuson, David J., author
McGraw-Hill, 1978
Buku Teks
Seltz, David D., author
McGraw-Hill, 1976
Buku Teks