Gaya APA
Jannah, R. (2016).
Improving speaking skill through group investigation at class X-9 of SMA 5 Kediri .
Kediri:
STAIN KEDIRI.
Gaya MLA
Jannah, Roihatul.
"Improving speaking skill through group investigation at class X-9 of SMA 5 Kediri".
Kediri:
STAIN KEDIRI,
2016.
Text.