Tomey, Ann Marriner, author
Mosby , 2009
Buku Teks
Huber, Diane L., author
Saunders , 2010
Buku Teks
Schein, Edgar H., author
San Francisco, 1992
Buku Teks
Selznick, Philip, author
Harper and Row , 1957
Buku Teks
Hughes, Richard L., author
McGraw-Hill, 2002
Buku Teks