Asia-Pacific Environmental Innovation Strategies (APEIS) - Research on Innovative and Strategic Policy Options (RISPO) -Good Practices Inventory - Shift from Leaded to Unleaded Gasoline in Thailand. Available from http://enviroscope.iges.or.jp/contents/APEIS/RISPO/inventory/ db/pdf/0097.pdf. An analysis of economic instruments for GHG mitigation in Thailand.