Gaya APA
Intermediate : social economic development. (2005).
tempaterbit:
penerbit.
Gaya Chicago
Intermediate : social economic development.
Edisi.
tempaterbit:
penerbit,
2005.
Text.
Gaya MLA
Intermediate : social economic development.
Edisi.
tempaterbit:
penerbit,
2005.
Text.
Gaya Turabian
Intermediate : social economic development.
tempaterbit:
penerbit,
2005.
Print.