Gaya APA
English in focus for grade VII, JUnior High School. (2008).
Jakarta:
Pusat Perbukuan, Departemen Pendidikan Nasional.
Gaya Chicago
English in focus for grade VII, JUnior High School.
.
Jakarta:
Pusat Perbukuan, Departemen Pendidikan Nasional,
2008.
Text.
Gaya MLA
English in focus for grade VII, JUnior High School.
.
Jakarta:
Pusat Perbukuan, Departemen Pendidikan Nasional,
2008.
Text.
Gaya Turabian
English in focus for grade VII, JUnior High School.
Jakarta:
Pusat Perbukuan, Departemen Pendidikan Nasional,
2008.
Print.