MACDOUGALL, N. Marginal Utility, the Ratio of Marginal Utility to Price and the Allocation of Spending Between Two Goods. POGIL Activity Clearinghouse, [S. l.], v. 2, n. 3, 2021. Disponível em: https://pac.pogil.org/index.php/pac/article/view/192. Acesso em: 28 apr. 2024.