Gaya APA
Putra, I., B., W., Anna, (2017).
Hukum kontrak internasional ( the law of international contract ) (Cet. 1).
:
Refika Aditama.
Gaya MLA
Putra, Ida, Bagus, Wyasa., Anna, .
"Hukum kontrak internasional ( the law of international contract )".
Cet. 1
:
Refika Aditama,
2017.
Textbook.