Eiteman, David K.
Pearson, 2010
Buku Teks
Eiteman, David K.
Pearson, 2001
Buku Teks
Hunt, Pearson
Richard D. Irwin, [Date of publication not identified]
Buku Teks
Eitman, David K.
Perason, 2001
Buku Teks
Lewellen, Wilbur G.
South-Western College Publishing, 2000
Buku Teks