For example, the Comprehensive Hazard and Risk Management (CHARM) tool of the South Pacific Applied Geoscience Commission, Community-Based Disaster Risk Management Field Practitioners' Handbook (Abarquez I and Murshed Z, 2004, Klong Luang: Asian Disaster Preparedness Center) and Natural Disaster Mitigation in Drinking Water and Sewerage Systems: Guidelines for Vulnerability Analysis (Pan American Health Organization, 1998, Washington, DC: PAHO).