Silvestri, Linda Anne, author
Saunders, 2009
Multimedia
Silvestri, Linda Anne, author
Elsevier/Saunders, 2011
Multimedia
editor, Dolores F. Saxton, Patricia M. Nugent, Phyllis K. Pelikan
Mosby. Inc. , 1999
Buku Teks
by Luzviminda Casapao [and others]
Barron's Educational Series, 1983
Buku Teks
Reed, David, author
American Management Association;, 2008
eBooks