Gaya APA
Priyana, J. et al (2008).
Interlaguage: english to senior high school students xi .
Jakarta:
Gramedia Widiasarana Indonesia.
Gaya MLA
Priyana, Joko. et al.
"Interlaguage: english to senior high school students xi".
Jakarta:
Gramedia Widiasarana Indonesia,
2008.
Text.