Wilson, Stan Le Roy, author
McGraw-Hill, 1995
Buku Teks
Westgeest, Helen, 1958-,
John Wiley & Sons, 2016
Buku Teks
Rosenblun, Michsel, author
McGraw-Hill, 2013
Buku Teks
Straubhaar, Joseph D., author
Cengage Learning, 2018
Buku Teks
Morris, Meghan, author
Sage, 2006
Buku Teks