Hodgson, Barbara B.
W.B. Saunders, 1997
Buku Referensi
Deglin, Judith Hopfer, 1950-
F.A. Davis , 2005
Buku Referensi
Wilson, Billie Ann
Pearson Education, 2003
Multimedia
Hodgson, Barbara B.
Elsevier , 2005
Buku Referensi
by Billie Ann Wilson ... [and others]
Prentice-Hall, 2007
Buku Teks