Yearsley, R.B.
Gower Press, 1974
Buku Referensi
Siswanto
Elex Media Komputindo, 1990
Buku Teks
Erikson, Warren J.
Addison-Wesley , 1986
Buku Teks
Flower, John
Accountancy Age Books, 1973
Buku Teks
Schwefel, Hans-Paul
John Wiley & Sons, 1977
Buku Teks