American Presidential Elections- Mechanism and campaign Issues with special reference to 2008-2012 elections. Psj [انترنت]. 28 فبراير، 2019 [وثق 11 مايو، 2024];(45):79-118. موجود في: https://jcopolicy.uobaghdad.edu.iq/index.php/jcopolicy/article/view/53