1. Central Bureau of Statistics, Israel, 2008. Demographic data on Israel. .
2. Central Bureau of Statistics, Israel, 2008. Energy import to Israel .
3. Clean Up Australia, 2007. Plastic bags – World report. .
4. The most popular tax in Europe? Lessons from the Irish plastic bags levy;Convery;Environmental and Resource Economics,2007
5. Department of the Environment and Local Government, 2002 Plastic Bag Environmental Levy in Ireland. .