Subsistence limit theory: a new vision. Economic studies journal, [S. l.], v. 4, n. 4, p. 170–159, 2021. DOI: 10.37375/esj.v4i4.2267. Disponível em: https://elc2.su.edu.ly/index.php/esj/article/view/2267. Acesso em: 8 dec. 2025.