Gaya APA

SULMA, S. et al (2012). Coastal physical vulnerability of Surabaya and its surrounding area to sea level rise . Jakarta: Direktorat Riset & Pengab. Masy UI.

Gaya MLA

SULMA, Sayidah. et al. "Coastal physical vulnerability of Surabaya and its surrounding area to sea level rise". Jakarta: Direktorat Riset & Pengab. Masy UI, 2012. Artikel.