1. Solid Waste Management in Nepal: Current Status and Policy Recommendations;ADB, Asian Development Bank,2013
2. Afsari, F., 2008. Method of and apparatus for multi-stage sorting of glass cullets. U.S. Patent 7,355,140.
3. Afsari, F., Dimsdale, J.S., 2008. Method of and apparatus for high speed, high quality, contaminant removal and color sorting of glass cullet. U.S. Patent 7,351,929.
4. Recycling and recovery routes of plastic solid waste (PSW): a review;Al-Salem;Waste Manage.,2009
5. Sustainable Solid Waste Management in India;Annepu,2012