| Authors, title, book, author, publisher, date, pages
|
| 26.Abdelbagi Dafalla Ahmed; Psychology: Principles, Basis & Theories; Khartoum University Press, 1st edition, 2006. |
| 27.Abdelbagi Dafalla Ahmed: International Encyclopaedia of Adolescence ;(2 volume set) Sudan Approach, Jeffrey Jensen Arnett (Editor), Rutledge; 1st edition(New York), (September 22, 2006).. |
| 28.Abdelbagi Dafalla Ahmed; Developmental Psychology: Conception to Adolescent, Khartoum University Press, 1st edition, 2008. |
| 29.Abdelbagi Dafalla Ahmed et al; Principles of Research Methodology, Alhurria Press, (2008). |
| 30.Abdelbagi Dafalla Ahmed: Characteristics of Sudanese Personality (Chapter in a series of Sudanese issues for discussion), Published by Sudan options media, 2008. |
| 31.Abdurrahman Osman, Abdelbagi Dafalla Ahmed, Educational Psychology, Open University Press, Third Edition, 2009. |
| 32.Abdelbagi Dafalla Ahmed & Rogia Alsayed; Theories & Principles of Personality, Alhurria Press, (2009). |
| 33.Abdelbagi Dafalla Ahmed: The Psychology of Personality, Open University Press, 1st Edition,( 2011). |
| 34.Abdelbagi Dafalla Ahmed: Developmental Psychology, University of Khartoum, Faculty of Distance education,( 2011). |
| 35.Rogia Alsayed, Abdelbagi Dafalla Ahmed & Ali Farah: Principles & Applications of Counselling Psychology, Alhurria Press, (2011). |
| 36.Abdelbagi Dafalla Ahmed: adolescent psychology around the world, (Sudan Approach (Revised Chapter) Jeffrey Jensen Arnett (Editor), Psychology Press; 1st edition (New York), (Jan, 22, 2011) |
