Baer, John, author
[Sense;, ], 2012
eBooks
Norwood, 1993
Buku Teks
Starko, Alane Jordan, author
Lawrence Erlbaum Associates, 2005
Buku Teks
Fogler, H. Scott, author
Prentice-Hall, 2008
Buku Teks
Levitt, Steven D., author
NY William Morrow, 2014
Buku Teks