Zerhouni، N. B. (2017). Is the Upgrade Enough to Reinforce the Performance of SME ? دراسات اقتصادية، ع27 ، 1 - 10. مسترجع من http://search.mandumah.com/Record/872471
Zerhouni، Nassima Bouri. "Is the Upgrade Enough to Reinforce the Performance of SME ?" دراسات اقتصادية ع27 (2017): 1 - 10. مسترجع من http://search.mandumah.com/Record/872471