Gaya APA
Falla, T. (2009).
Solutions Upper-Intermediate Class CD1: Unit 1 - Unit 6C .
Inggris:
Oxford University Press.
Gaya MLA
Falla, Tim.
"Solutions Upper-Intermediate Class CD1: Unit 1 - Unit 6C".
Inggris:
Oxford University Press,
2009.
Digital Versatile Disc.