Nursin A. Guney, The Future of US and GCC Relations: Break-up, Re-engagement or Partnership?, BİLGESAM ANALYSIS, 8 June 2015. 

http://www.bilgesam.org/en/incele/2117/-the-future-of-us-and-gcc-relations--break-up--re-engagement-or-partnership-/#.VXV8_dLtmkq