Ph.D., Computer Science, University of Hamburg, Germany, 1999
Ph.D., Software Quality Engineering and Management, University of Birmingham, UK, 1995
Ph.D., University of Technology, Iraq, 2006
Ph.D., University of Khartoum, Sudan, 2011
Ph.D., University of Waterloo, Canada.
Ph.D., University of Quebec, Canada.
Ph.D., University of Putra, Malaysia.
Ph.D., University of Montreal (Ecole Polytechnique), Canada, 2006.
