McGraw-Hill, 2000
Buku Teks
Kochanek, Richard F., author
Harcourt Brace Jovanovich, 1990
Buku Teks
Shillinglaw, Gordon
Il. Richard D. Irwin , 1989
Buku Teks
by Thomas P. Edmonds [and others]
McGraw-Hill, 1997
Buku Teks
Spiller, Earl A., author
Homewood, Illinois , Richard D. Irwin
Buku Teks