قرفي ش. Evaluating the Level of Competency of Applying the Knowledgebased Economy in the MENA Countries Using DEA (2015-2019). khazzartech الاقتصاد الصناعي, [S. l.], v. 11, n. 1, p. 323–347, 2021. DOI: 10.59791/ierk.v11i1.2546. Disponível em: https://journals.univ-batna.dz/index.php/khazzartech/article/view/2546. Acesso em: 3 jul. 2024.