Trawick-Smith, Jeffrey W., author
Pearson, 2014
Buku Teks
Baldock, Peter, author
McGraw-Hill; Open University Press, 2011
Buku Teks
edited by Ann Farrell, Sharon Lynn Kagan and E. Kay M. Tisdall
SAGE Publications, 2016
Buku Teks
Karen Menke Paciorek, editor
McGraw-Hill, 2014
Buku Teks
Karen Menke Paciorek, editor
McGraw-Hill, 2012
Buku Teks