McConnell, David, author
McGraw-Hill, 2010
Buku Teks
by C. Wroe Wolfe ... [and others]
Heath and Company, 1966
Buku Teks
Ramsey, William L., author
Holt, Rinehart and Winston, 1961
Buku Teks
Miller, G. Tyler (George Tyler), 1931-, author
Thomson, 2004
Buku Teks
Miller, G. Tyler (George Tyler), 1931-, author
Wadsworth, 1997
Buku Teks