1. APEC Energy Demand and Supply 4th Edition;APEC (Asia Pacific Energy Research Centre),2009
2. First Malaysia Plan 1966–1970;EPU (Economic Planning Unit Malaysia),1966
3. Energy policy and alternative energy in Malaysia: issues and challenges for sustainable growth;Hui;Renew. Sustain. Energy Rev.,2010
4. Towards sustainable development? The evolution of environmental policy in Malaysia;Hezri,2006
5. Third Malaysia Plan 1976–1980;EPU (Economic Planning Unit Malaysia),1976