Routledge, 2013
Buku Teks
Pal, Leslie A. (Leslie Alexander), 1954-, author
Nelson Education, 2014
Buku Teks
Nagel, Stuart S.
The University of Alabama Press, 1984
Buku Teks
Gramberger, Marc, author
OECD, 2001
Buku Teks
Barzelay, Michael, author
University of California Press, 2001
Buku Teks