Gaya APA

Arif, K, M. (2019). We are the champions (Cet. 1). Yogyakarta: Pro-U Media.

Gaya MLA

Arif, Khairan, Muhammad. "We are the champions". Cet. 1 Yogyakarta: Pro-U Media, 2019. BUKU CETAK (PRINTED BOOK).