Patton, Michael Quinn, author
Sage, 1990
Buku Teks
Neuman, William Lawrence, 1950-, author
Allyn and Bacon, 2003
Buku Teks
Neuman, William Lawrence, 1950-, author
Allyn and Bacon, 1994
Buku Teks
Neuman, William Lawrence, 1950-, author
Pearson/Allyn and Bacon, 2006
Buku Teks
Neuman, William Lawrence, 1950-, author
Pearson Education, 2014
Buku Teks