Gaya APA
Kurniawan,LAnny, ., Nuryuni, A. (2009).
English Today 2 Science & Social Program SMA Grade XI .
Semarang:
Quadra.
Gaya MLA
Kurniawan,LAnny, ., Nuryuni, Artiningsih,Siti.
"English Today 2 Science & Social Program SMA Grade XI".
Semarang:
Quadra,
2009.
Text.