APA Style
Setyoningsih, . (2011).
Improving English Skills .
Kudus:
Nora Media Enterprise.
Chicago Style
Setyoningsih, .
Improving English Skills.
Kudus:
Nora Media Enterprise,
2011.
Buku.
MLA Style
Setyoningsih, .
Improving English Skills.
Kudus:
Nora Media Enterprise,
2011.
Buku.
Turabian Style
Setyoningsih, .
Improving English Skills.
Kudus:
Nora Media Enterprise,
2011.
Buku.