Young, Lynne E.
F.A. Davis , 2002
Buku Teks
Pender, Nola J., author
Appleton & Lange, 1987
Buku Teks
Aspen Publication, 1995
Buku Teks
Ducanis, Alex J., author
Aspen Publication, 1979
Buku Teks
edited by Louise Gallagher, Maryhelen Cole Kreidler
Appletton & Lange, 1987
Buku Teks