Scientific Evidence of a Clash between Das Sollen and Das Sein in the book Oligarchy by Jeffrey A Winters. JOURNAL of LEGAL RESEARCH, [S. l.], v. 4, n. 3, p. 837–848, 2022. DOI: 10.15408/jlr.v4i3.27657. Disponível em: https://journal.uinjkt.ac.id/jlr/article/view/27657. Acesso em: 16 oct. 2025.