Gaya APA
Center, B, L. (2017).
Simple Fun and Easy Percakapan Bahasa Jerman (Cet.1.).
Yogyakarta:
Bright Publisher.
Gaya MLA
Center, Bright, Learning.
"Simple Fun and Easy Percakapan Bahasa Jerman".
Cet.1.
Yogyakarta:
Bright Publisher,
2017.
Transparency.