Gaya APA

Benson, C., Twigg, J. (2007). Tools For Mainstreaming Disaster Risk Reduction : Guidance Notes for Development Organisations . Switzerland: Provention Consortium.

Gaya MLA

Benson, Charlotte., Twigg, John. "Tools For Mainstreaming Disaster Risk Reduction : Guidance Notes for Development Organisations". Switzerland: Provention Consortium, 2007. Buku.