New York Unversity Press, 1978
Buku Teks
Rubin, H. Ted, author
McGraw-Hill, 1985
Buku Teks
Lawrence, Richard, author
Sage, 2008
Buku Teks
David W. Springer, Albert R. Roberts, editor
Jones and Bartlett Publishers, 2011
Buku Teks
edited by Malcolm W. Klein
Sage, 1976
Buku Teks