Gaya APA
-A, T, L, F. (2005).
The World is Flat: the globalized world in the twenty-first century (8).
America:
Penguin Book.
Gaya MLA
-A, Thomas, L, Friedman.
"The World is Flat: the globalized world in the twenty-first century".
8
America:
Penguin Book,
2005.
Text.