Marczak, Bill; Weaver, Nicolas; Dalek, Jakub; Ensafi, Roya; Fifield, David; McKune, Sarah; Rey, Arn; Scott-Railton, John; Deibert, Ronald; Paxson, Vern (April 10, 2015). "China's Great Cannon". The Citizen Lab. Munk School of Global Affairs, University of Toronto, Canada. Diakses tanggal April 10, 2015.