APA Style
NUGRAHA, Boyke Dian. (2003).
ENGLISH EF : Student s book : Threshold 1 .
Amsterdam:
EF English First B.V.
Chicago Style
NUGRAHA, Boyke Dian.
ENGLISH EF : Student s book : Threshold 1.
Amsterdam:
EF English First B.V,
2003.
Buku.
MLA Style
NUGRAHA, Boyke Dian.
ENGLISH EF : Student s book : Threshold 1.
Amsterdam:
EF English First B.V,
2003.
Buku.
Turabian Style
NUGRAHA, Boyke Dian.
ENGLISH EF : Student s book : Threshold 1.
Amsterdam:
EF English First B.V,
2003.
Buku.