Hoffmann, Thomas R., author
Wadsworth, 1967
Buku Teks
Dilworth, James B., 1939-, author
McGraw-Hill , 1993
Buku Teks
Chase, Richard B., author
Irwin , 1995
Buku Teks
Riggs, James L., author
John Wiley & Sons, 1976
Buku Teks
Vollmann, Thomas E., author
Business One Irwin, 1993
Buku Referensi