Effectiveness Of Registered Letter Summoning Laws (After The Supreme Court Circular Letter Number 1 Of 2023). Journal of Private and Commercial Law, [S. l.], v. 9, n. 2, p. 140–159, 2025. DOI: 10.15294/jpcl.v9i2.15131. Disponível em: https://journal.unnes.ac.id/journals/jpcl/article/view/15131. Acesso em: 25 dec. 2025.