Robinson, O. Preston
Prentice Hall Inc., 1959
Buku Teks
Siswanto Sutojo
Damar Mulia Pustaka, 2003
Buku Teks
Cox, Roger
Financial Times Prentice Hall, 2000
Buku Teks
Jones, Fred M.
Richard D. Irwin, 1957
Buku Teks
Berman, Barry
Prentice-Hall, 2001
Buku Teks