Schultz, Theodore W., author
Free Press, 1971
Buku Teks
Schultz, Theodore W., author
Free Press, 1971
Buku Teks
Hawley, Amos H., author
The University of Chicago Press, 1986
Buku Teks
Dhanani, Shafiq, author
Routledge, 2009
Buku Teks
Layard, Richard, author
Oxford University Press, 1992
Buku Teks