Walker, Ernest W., author
Harper & Brothers, 1961
Buku Teks
Higgins, Robert C., author
McGraw-Hill, 2000
Buku Teks
Block, Stanley B., author
Japan Toppan Co. Ltd, 1990
Buku Teks
Irwin McGraw-Hill, 1999
Buku Teks
edited by James W. Bryant
John Wiley & Sons, 1982
Buku Teks