MESSAOUDI, Malika. “Effectiveness of the Aggregate Supply and Aggregate Demand Model for Selecting Balanced Economic Policy in the Context of the Informal Economy”. Dirassat Journal Economic Issue 3, no. 1 (June 1, 2012): 200-214. Accessed November 24, 2024. http://journals.lagh-univ.dz/index.php/djei/article/view/455.