Higgins, Robert C.
McGraw-Hill, 2000
Buku Teks
Block, Stanley B.
Japan Toppan Co. Ltd, 1990
Buku Teks
Irwin McGraw-Hill, 1999
Buku Teks
edited by James W. Bryant
John Wiley & Sons, 1982
Buku Teks
Gallinger, George W.
Mass. Addison-Wesley , 1987
Buku Teks