Edey, Harold C.
Hutchinson's University Library , 1973
Buku Teks
Edwards, James Don, author
Richard D. Irwin , 1986
Buku Teks
Gillespie, Cecil, author
Prentice-Hall, 1971
Buku Teks
Godfrey, Jayne
John Wiley & Sons, 1997
Buku Teks
Grady, Paul
New York, N.Y., American Institute of Certified Public Accountants
Buku Teks