Rainbolt, George W., author
Wadsworth and Cengage Learning, 2012
Buku Teks
Chatfield, Tom, author
Sage, 2018
Buku Teks
Foresman, Galen A., author
Wiley Blackwell, 2017
Buku Teks
Rainbolt, George, author
Wadsworth and Cengage Learning, 2012
Buku Teks
Warnick, Barbara, 1946-, author
Macmillan, 1994
Buku Teks