"EDM resection and intersection", Alexandria engineering journal, Vol. 35. "AIS application on civil aviation", International symposium on GIS/GPS, Istanbul, Turkey . "Egyptian geodetic datum", International symposium on GIS/GPS, Istanbul, Turkey. "Surveying applications on archaeology", Alexandria Engineering Journal, Vol. 35. "Automation of deformation", 1st Turkish international symposium on deformation, Istanbul, Turkey. "Deformation of minarets, procedure and application", International symposium on deformation, Istanbul, Turkey. "Triangulation network in Greater Cairo", 4th International symposium on geodesy in Africa, Tunis, IAG, Journal of Geodynamics Vol. 63 No 2. "Error ellipsoid", 4th International symposium on geodesy in Africa, Tunis, IAG, Journal of Geodynamics Vol. 63, No 2. "Local three dimension traverse", 4th International symposium on geodesy in Africa, Tunis, IGA, Journal of Geodynamics Vol.63, No2. "New Chord Formulae", Journal of Geodynamics, Vol.7, issue 3-4, pp 351-360. "Test lines of long distances", International symposium of recent crustal movement in Africa, Journal of geodynamics Vol.7 No 3-4. "Stats of triangulation network in Egypt", 3rd International symposium on crustal movement in Africa, Aswan, IAG. "Crustal movement in Moquatum hills", 3rd International symposium on crustal movement in Africa, Aswan, IAG. "Long line formulae and their accuracy", 2nd International symposium on geodesy in Africa, Cairo, Journal of geodynamics, Vol.6, accepted January 3rd. "Accurate provisional coordinates for variation of coordinates adjustment", 2nd International symposium in Africa, IAG, Journal of Geodynamics, January. "Non iterative formulae for direct problem" M.Sc., Department of Geodetic science, The University of Oxford. "Integration of longitude on ellipsoid to have longitude on equivalent sphere" M.Sc. Department of Geodetic Science, The University of Oxford. Islamic Prayer Times Determined from Geodetic Astronomic Principles New chord formulae