Hodkinson, Paul, author
Sage Publications, 2011
Buku Teks
Wilson, Stan Le Roy, author
McGraw-Hill, 1995
Buku Teks
Baran, Stanley J., author
McGraw-Hill, 2004
Buku Teks
Baran, Stanley J., author
McGraw-Hill, 2013
Buku Teks
Baran, Stanley J., author
McGraw-Hill, 2003
Buku Teks