Document Type : Original Article
(2015). . Egyptian Journal of Public Opinion Research, 14(4), 515-590. doi: 10.21608/joa.2015.82651
. "", Egyptian Journal of Public Opinion Research, 14, 4, 2015, 515-590. doi: 10.21608/joa.2015.82651
(2015). '', Egyptian Journal of Public Opinion Research, 14(4), pp. 515-590. doi: 10.21608/joa.2015.82651
. Egyptian Journal of Public Opinion Research, 2015; 14(4): 515-590. doi: 10.21608/joa.2015.82651
