“Arms Control Today.” The Nuclear Nonproliferation Treaty: History and Current Problems | Arms Control Association, www.armscontrol.org/act/2003_12/Bunn.
Roarty, T. (2017, December 13). Fission Vs. Fusion. Retrieved February 12, 2018, from https://www.youtube.com/watch?v=ZvU2emVH0mQ Sharp, T. (2017, August 08). What is an Atom? Retrieved February 12, 2018, from https://www.livescience.com/37206-atom-definition.html