ElGamal, N., A. E. -, and G. G. H. -, "An Architecture-Oriented Data Warehouse Testing Approach", 21st International Conference on Management of Data (COMAD), Pune, India, 11 March 2016.
ElGamal, N., A. E. Bastawissy, and G. Galal-Edeen, "Towards a Data Warehouse Testing Framework", 9th International Conference on ICT and Knowledge Engineering, Bangkok, Thailand, IEEE, pp. 65–71, 9 January 2012, 2011. Abstract

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ElGamal, N., "Data Warehouse Conceptual Modeling Approaches", 37th International Conference on Computers and Industrial Engineering, Alexandira, Egypt, pp. 231-242, 2007.
ElGamal, N., A. E. Bastawissy, and G. Galal-Edeen, "Data Warehouse Testing", Proceedings of the Joint EDBT/ICDT 2013 Workshops, Genoa, Italy, ACM, pp. 1–8, 21 March 2013. Abstract

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El-Gamal, N., A. El-Bastawissy, and G. G. Edeen, "Towards A Generic Conceptual Model for Data Warehouse", 5th IBIMA (International Business Information Management Association, Cairo, Egypt, December 13-15, 2005. Abstract

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