SOBRAL SAMPAIO, Waldemar. Jevons and the principle of marginal utility: Empirical research and economic theory. Semestre Económico, [S. l.], v. 20, n. 42, p. 73–93, 2017. DOI: 10.22395/seec.v20n42a3. Disponível em: https://revistas.udem.edu.co/index.php/economico/article/view/2096. Acesso em: 17 apr. 2026.