Wheelen, Thomas L., author
Parson, 2004
Buku Teks
Thomas L. Wheelen, J. David Hunger; Alan N. Hoffman, Charles E. Bamford
Pearson, 2015
Buku Teks
Wheelen, Thomas L., author
Parson, 2004
Buku Teks
edited by Merwin M. Hargrove, Ike H. Harrison and Eugene L. Swearingen
Irwin, 1966
Buku Teks
Quelch, John A., author
Prentice-Hall, 2001
Buku Teks