McMorrow, Mary Ellen, author
Prentice-Hall, 1983
Buku Teks
by Luzviminda Casapao [and others]
Barron's Educational Series, 1983
Buku Teks
Sagebeer, Josephine Evans, author
Arco Publishing Company, Inc., 1975
Buku Teks
Silvestri, Linda Anne, author
Saunders, 2009
Multimedia
Silvestri, Linda Anne, author
Saunders Elsevier, 2009
Buku Teks