Gaya APA

PERMATASARI, Y. (2019). The urgency of guidelines for the long-term sustainability of outer space activities for Indonesia. . Surabaya: FISIP Universitas Airlangga.

Gaya MLA

PERMATASARI, Yunita. "The urgency of guidelines for the long-term sustainability of outer space activities for Indonesia.". Surabaya: FISIP Universitas Airlangga, 2019. Artikel.