Warren, Carl S.
International Thomson, 1999
Buku Teks
Reeve, James M., 1953-
South Western Cengage Learning, 2012
Buku Teks
Hilton, Ronald W.
McGraw-Hill, 1997
Buku Teks
Hilton, Ronald W.
McGraw-Hill, 1991
Buku Teks
Oliver, M. Suzanne
Pearson, 2010
Buku Teks