A study to Develop the Efficiency of Natural Lighting of the Service Section of the Residential Building Unit. Al-Azhar Engineering Sixth International Conference, September 2000 Flexibility in Hospital Design. Al-Azhar Engineering Sixth International Conference, September 2000. Analytical Study for Upgrading the Efficient of Daylighting in Residential Space. Fin Art Faculty, Third Scientific Conference, April 2001 Natural Lighting Study in Residential Buildings According to Local Building Codes in Egypt, Second International Conference for Development and Environment In Arab World, Assuit Univ., March 2004 The Effect of the Design Module of Windows on Natural Lighting In The Drawing Studios of Architectural Department, Second International Conference for Development and Environment In Arab World, Assuit Univ., March 2004 Applied Study for Usage of Computer as an Aid Tool for Evaluation of Students, Al-Azhar Engineering Eight International Conference, December 2004 Impact of Court Dimensions upon the Intensity of Natural Lighting inside Residential Spaces in Egypt, Engineering Research Journal Shoubra Faculty of Engineering NO.3 January 2005 The Architecture Education in the in Framework of Modern Period Data, Second International Conference for Development and Environment In Arab World, Minia Univ., March 2009 Architectural Identity of Urban Complexes, Engineering Research Journal, Faculty of Engineering, Al-Azhar University vol. 4 No 12, July 2009 Natural Lighting Study Accordingly to the Variation of Building Codes in Egypt, Fifth International Conference for Development and Environment In Arab World, Assuit Univ., March 2010 The Impact of Front Barrier s Heights on the Intensity of Natural Lighting in Residential Buildings According to Local Building Codes in Egypt. Sixth International Conference for Development and Environment In Arab World, Assuit Univ. March 2012. Effect of Architectural Form for Fenestrations on Natural Lighting Distribution in Residential Spaces, Sixth International Conference for Development and Environment In Arab World, Assuit Univ., March 2012 The Impact of Internal Space Dimensions upon the Intensity of Natural Lighting,Al-Azhar Engineering Twelfth International Conference,December 2012 Solving Architectural Natural Lighting Problems through the Practicing of the Architectural Students,Al-Azhar, Engineering Al-Azhar Faculty of Engineering Jan 15th, 2013(Accepted) vol. 4 No 12, July 2013