Ebert, Ronald J., author
Prentice-Hall, 2003
Buku Teks
Ebert, Ronald J., author
Pearson, 2015
Buku Teks
Ebert, Ronald J., author
Prentice-Hall, 2009
Buku Teks
Ball, Donald A., author
Business Publications, 1985
Buku Teks
Guffey, Mary Ellen, author
PWS Publishing, 1991
Buku Teks