AHMAD, S. Need For A Need-Based Economics: A Critical Look At The Conventional Demand-Supply Curve. International Journal of Social Sciences and Humanities Invention, [S. l.], v. 2, n. 11, 2015. Disponível em: http://valleyinternational.net/index.php/theijsshi/article/view/283. Acesso em: 5 nov. 2024.