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*[[Mohamed El-Demerdash]] and [[Ulrich Kortenkamp]] (in press). The Development of an Instrument to Measure Geometric Creativity.

*[Mohamed El-Demerdash] and [[Ulrich Kortenkamp]] (in press). The Development of an Instrument to Measure Geometric Creativity.

*[[Mohamed El-Demerdash]] (2010). The Effectiveness of an Enrichment Program Using Dynamic Geometry Software in Developing Mathematically Gifted Students' Geometric Creativity in High Schools. Ph.D. thesis, The University of Education Schwaebisch Gmuend, Germany.

*[[Mohamed El-Demerdash]] (2010). The Effectiveness of an Enrichment Program Using Dynamic Geometry Software in Developing Mathematically Gifted Students' Geometric Creativity in High Schools. Ph.D. thesis, The University of Education Schwaebisch Gmuend, Germany.