Gaya APA

SIREGAR, M, L. (2015). Hazard-driven drivers' behaviours towards vehicle-to-median safe distances . Depok: Directorate of Research and Community Services,UI.

Gaya MLA

SIREGAR, Martha, Leni. "Hazard-driven drivers' behaviours towards vehicle-to-median safe distances". Depok: Directorate of Research and Community Services,UI, 2015. Artikel.