Badr Abu .2019 .Using Statistical Methods in Social Sciences Research, Arab Center for Research and Policy Studies. , : .
Barakat .2014 .Introduction to Statistical Analysis of Media Research. , : .
Baha Turkiya,Al-Ahali Publishing Turkiya .2002 .(. Social Statistics, 1st Edition, : .
Al-Jundi .2014 .Statistics and Computer Applications with IBM SPSS, Anglo Egyptian Bookshop. , : .
Ray L. Carpenter ,Al-Mareekh Publishing .1998 .. , : .
Al-Kinani .2014 .. , : .
Murad Salah Ahmed .2002 .. , : .
Murad Salah Ahmed .2011 .. , : .
Abdel Mustafa,Hafiz Mustafa,Testing Hypothesis,Theory Hypothesis .2002 .. Statistical Inference Part, 2 : .