Ohtaki, Reiji
John Wiley & Sons, 2004
Buku Teks
Moore, Herbert, author
McGraw-Hill, 1942
Buku Teks
Madura, Jeff, author
South-Western College, 2001
Buku Teks
Ebert, Ronald J., author
Prentice-Hall, 1998
Buku Teks
Straub, Joseph T., author
Kent, 1985
Buku Teks