Gaya APA

Hakim, C., Nugroho, W. (2021). Defence & Aviation 2 (Cet. 1). Jakarta: Penerbit Buku Gramedia.

Gaya MLA

Hakim, Chappy., Nugroho, Wisnu. "Defence & Aviation 2". Cet. 1 Jakarta: Penerbit Buku Gramedia, 2021. Text.