Marsh, S.B., author
McGraw-Hill, 1975
Buku Teks
Bond, Helen J., author
Blackstone, 1990
Buku Teks
Miller, Roger LeRoy, author
Thomson West, 2007
Buku Teks
Marsh, S.B., author
MCGraw-Hill, 1995
Buku Teks
Clark, Lawrence S., author
McGraw-Hill, 1988.
Buku Teks