DeCoster, Don T., author
Melville Publishing Company, 1974
Buku Teks
Brewer, Peter C., author
McGraw-Hill Education, 2016
Buku Teks
Reeve, James M., 1953-, author
South Western Cengage Learning, 2012
Buku Teks
Shillinglaw, Gordon, author
Richard D. Irwin, 1977
Buku Teks
Warren, Carl S., author
International Thomson, 1999
Buku Teks