Delaney, Patrick N., author
John Wiley & Sons, 1986
Buku Teks
Delaney, Patrick R., author
John Wiley & Sons, 1990
Buku Teks
Robinson, Robert T.
Richard D. Irwin Inc., 1969
Buku Teks
Gleim, Irvin N., author
John Wiley & Sons, 1984
Buku Teks
Lowe, G.B., author
South-Western Publishing, 1983
Buku Teks