Barker, Carol, author
Sage Publications, 1996
Buku Teks
Lovett-Scott, Margie, author
Jones & Bartlett Learning, 2014
Buku Teks
Sage, 1986
Buku Teks
Stamatis, Diomidis H.
Chicago Irwin 1996 , 1996
Buku Teks
edited by Edward Hence Shortliffe and James J. Cimino
Springer, 2006
Buku Teks