1. A cross-cultural study of personality: Egypt and England;Abdel-Khalek;Res. Behav. Person.,1983
2. The assessment of personality factors across 25 countries;Barrett;Person. individ. Diff.,1984
3. Manual of E.P.Q.;Eysenck,1975
4. Personality and Individual Differences: A Natural Science Approach;Eysenck,1985
5. The Use of Guilford Personality Scales in Egypt;Farrag,1975