Bogart, Leo ed
Markham Company, 1969
Buku Teks
Brown, F.E.
Addison Wesley c. , 1980
Buku Teks
Cox, William E. Jr.
N.Y. John Wiley c., 1979
Buku Teks
Sethna, Beheruz N.
Tata McGraw-Hill, 1984
Buku Teks
McDaniel, Carl, author
Salemba Empat , 2001
Buku Teks