Gaya APA

ELVIRA, E. et al (2011). Numerical simulation of threat-independent progressive collapse . Surabaya: Petra Christian University-Surabaya, Indonwsia.

Gaya MLA

ELVIRA, E.. et al. "Numerical simulation of threat-independent progressive collapse". Surabaya: Petra Christian University-Surabaya, Indonwsia, 2011. Artikel.