Lewis, Richard, author
Pitman Books, 1983
Buku Teks
Samuels, John M., author
McGraw-Hill, 1989
Buku Teks
Baker, Richard E., author
McGraw-Hill, 1996
Buku Teks
Baker, Richard E., author
McGraw-Hill, 1989
Buku Teks
Baker, Richard E., author
McGraw-Hill, 1989
Buku Teks