Murphy, Robert F., author
Prentice-Hall, 1986
Buku Teks
Lenkeit, Roberta Edwards, author
McGraw-Hill, 2012
Buku Teks
Kottak, Conrad Phillip, 1942-, author
McGraw-Hill, 2011
Buku Teks
Rosman, Abraham, author
Random House, 1989
Buku Teks
Rapport, Nigel, author
Routledge, 2000
Buku Teks