Eldawayaty، D. M. A. (2020). The Impact of Research and Development "R&D" Intensity on Financial Performance and Firm Value: An Empirical Study on Pharmaceutical Companies Listed on Egyptian Stock Exchange. مجلة الإسكندرية للبحوث المحاسبية، مج4, ع3 ، 1 - 55. مسترجع من http://search.mandumah.com/Record/1119285
Eldawayaty، Dalida Mohamed Adel. "The Impact of Research and Development "R&D" Intensity On Financial Performance and Firm Value: An Empirical Study On Pharmaceutical Companies Listed On Egyptian Stock Exchange." مجلة الإسكندرية للبحوث المحاسبية مج4, ع3 (2020): 1 - 55. مسترجع من http://search.mandumah.com/Record/1119285