Gaya APA
Wargadipura, M, I. (2015).
The Effect 0f Information Gap Activity on Students' Speaking Skill .
Bogor:
FKIP Unpak.
Gaya MLA
Wargadipura, M., Iqbal.
"The Effect 0f Information Gap Activity on Students' Speaking Skill".
Bogor:
FKIP Unpak,
2015.
.