Romney, Marshall B., author
Pearson Education, 2015
Buku Teks
Hall, James A., 1944-, author
Cengage Learning, 2016
Buku Teks
Wilkinson, Joseph W., author
John Wiley & Sons, 1991
Buku Teks
Romney, Marshall B., author
Prentice-Hall, 2003
Buku Teks
Gelinas, Ulric J., author
South-Western , 2005
Buku Teks