John W. Williamson
Sage Publications, 2002
Buku Teks
Marion Johnson ... [and others]
Elsevier Mosby, 2012
Buku Teks
Meg Gulanick, Judith L. Myers
Mosby , 2001
Buku Teks
Giddens
2005
Multimedia
Carpenito-Moyet, Lynda Juall, author
J.B. Lippincott , 1995
Buku Teks