Woods, Nancy Fugate, author
Mosby, 1984
Buku Teks
Hogan, Rosemarie Mihelich, author
Appleton-Century Crofts, 1980
Buku Teks
edited by Susan J. Bunting
McGraw-Hill, 2003
Buku Teks
Rathus, Spencer A., author
Allyn and Bacon, 1993
Buku Teks
Washington DC American Anthropological Association [c. 1973]
Buku Teks