Cox, Steven M., author
McGraw-Hill, 1998
Buku Teks
Nemeth, Charles P., author
Jones and Bartlett, 2011
Buku Teks
Shelden, Randall G., author
Little, Brown, 1982
Buku Teks
Yingyi, Situ, author
Sage Publications, 2000
Buku Teks
Quinney, Richard, editor
Little, Brown , 1969
Buku Teks