Schwandt, Thomas A., author
Sage, 1988
Buku Teks
edited by Kathryn Dean
Sage, 1993
Buku Teks
Weirich, Thomas, author
South-Western, 1988
Buku Teks
Kinnear, Thomas C., 1943-, author
McGraw-Hill, 1996
Buku Teks
Kinnear, Thomas C., 1943-, author
McGraw-Hill, 1983
Buku Teks