Speinkel, Beryl W., author
Dow Jones-Irwin, 1977
Buku Teks
Zimmerman, Gary, author
John Wiley & Sons, 1980
Buku Teks
Kiyosaki, Robert T., 1947-, author
Gramedia Pustaka Utama, 2003
Buku Teks
Lerner, Joel J., author
McGraw-Hill, 1985
Buku Teks
Stillman, Richard J., author
Prentice-Hall, 1972
Buku Teks