Sharpe, Pamela J.
Barron's Educational Series,
Multimedia
by Luzviminda Casapao [and others]
Barron's Educational Series, 1983
Buku Teks
Barron, Patrick, author
World Bank Office Jakarta, 2004
Buku Teks
Barron's Educational Series,
Multimedia
Daniels, Diane
Erlangga, 1995
Buku Teks