CHABI , Tayeb. “Identification of Business Performance Scenarios by Productivity, Profitability and Competitiveness According to the Morphol Model: Case of a Business Sample.”. Dirassat Journal Economic Issue 6, no. 1 (January 1, 2015): 291-307. Accessed May 9, 2025. http://journals.lagh-univ.dz/index.php/djei/article/view/547.