Gaya APA
Friedman, T, L. (2006).
The world is flat : the globalised world in the twenty-first century .
Jakarta:
Dian Rakyat.
Gaya MLA
Friedman, Thomas, L..
"The world is flat : the globalised world in the twenty-first century".
Jakarta:
Dian Rakyat,
2006.
Buku Cetak.