Legality and Proof of Unwritten Agreements from a Civil Law Perspective. Batulis Civil Law Review, [S. l.], v. 5, n. 2, p. 109–115, 2024. DOI: 10.47268/ballrev.v5i2.2033. Disponível em: https://fhukum.unpatti.ac.id/jurnal/ballrev/article/view/2033. Acesso em: 10 jun. 2026.