Sri Hartinah
Pusat jasa Perpustakaan dan Informasi ( Perpustakaan Nasional RI), 2009
Artikel Jurnal
Dominick, Joseph R., author
McGraw-Hill, 2013
Buku Teks
Dominick, Joseph R., author
McGraw-Hill, 2005
Buku Teks
Musgrave, James Ray
1996
Multimedia
Jungherr, Andreas, author
Cambridge University Press, 2020
eBooks