Gaya APA

Karr, J, M. et al (2012). Evaluation of Mud Flow Disaster Alternatives in Sidoarjo Regency, East Java, Indonesia . Surabaya: LPPM ITS.

Gaya MLA

Karr, John, McLachlan. et al. "Evaluation of Mud Flow Disaster Alternatives in Sidoarjo Regency, East Java, Indonesia". Surabaya: LPPM ITS, 2012. Text.