Frans Xaverius Ulu, and Andy Usmina Wijaya. “Action Against Assistance in the Abuse of Residence Permits for Foreign Nationals by the Class I Immigration Office TPI Tanjung Perak (Case Study of the Surabaya District Court Decision No. 4485 Pid.C 2021 PN Sby)”. Journal of Law, Politic and Humanities, vol. 5, no. 3, Feb. 2025, pp. 1948-56, doi:10.38035/jlph.v5i3.1346.