Pittenger, David J., author
2003
Multimedia
Pittenger, David J., author
2003
Multimedia
Abbas Tashakkori, Charles Teddlie
SAGE Publications, 2010
Buku Teks
Sommer, Robert, author
New York, 2002
Buku Teks
Pittenger, David J., author
McGraw-Hill, 2003
Buku Teks