Khelassi، A.، Rezgui، N. E.، و Besir، L. (2023). Measuring Efficiency of Health Systems in the Eastern Mediterranean Region during COVID-19 Using Data Envelopment Analysis Method "DEA". مجلة إقتصاديات شمال إفريقيا، مج19, ع31 ، 179 - 188. مسترجع من http://search.mandumah.com/Record/1364931
Khelassi، Abdel-Illah، Nour Elhouda Rezgui، و Lutfi Besir. "Measuring Efficiency of Health Systems in the Eastern Mediterranean Region During COVID-19 Using Data Envelopment Analysis Method "DEA"." مجلة إقتصاديات شمال إفريقيا مج19, ع31 (2023): 179 - 188. مسترجع من http://search.mandumah.com/Record/1364931