Schilling, Melissa A, author
McGraw-Hill Irwin, 2005
Buku Teks
Davenport, Thomas H., author
Publicis, 2006
Buku Teks
S. E Stephanou
Daniel Spencer Pubs, 1980
Buku Teks
Schilling, Melissa A, author
McGraw-Hill, 2013
Buku Teks
Rini Tri Puspohardini, author
Elmatera, 2011
Buku Teks