Gaya APA

PERWITA, A, A, B., RACHMAWATI, W, D. (2018). The modernization of poland defense forces as a response toward russian military presence in kaliningrad oblast (2014-2017) . Surabaya: Fak. ISIP Universitas Airlangga.

Gaya MLA

PERWITA, Anak, Agung, Banyu., RACHMAWATI, Widya, Dwi. "The modernization of poland defense forces as a response toward russian military presence in kaliningrad oblast (2014-2017)". Surabaya: Fak. ISIP Universitas Airlangga, 2018. Artikel.