Easton, Thomas, 1944-2014, author
McGraw-Hill , 2003
Buku Teks
edited by Max H. Bazerman ... [et.al.]
The New Lexington Press , 1997
Buku Teks
Bonnes, Mirilia, author
Sage, 1995
Buku Teks
Beder, Sharon, author
Earthscan, 2006
Buku Teks
Nash, Rederick Frazier, author
University of Wisconsin Press, 1989
Buku Teks