فهرس المقالات Meta Cost Frontier حرية الوصول المقاله صفحة الملخص نص كامل 1 - Meta cost Malmquist Index with variable relative importance as a function of time in different period and FDH models of DEA Parisa Firoozishahmirzadi Shaghayeh Rahimi Zohreh Gerailinezhad Nasiri Seyedsajad 10.30495/ijdea.2023.70999.1189