Tampoma, Maichal Andersen, and Sunardi Sunardi. “Registering Underground Rights: Evaluating Deed Standards and Evidence Post-GR 18 2021”. AL-MANHAJ: Jurnal Hukum Dan Pranata Sosial Islam, vol. 8, no. 2, Aug. 2026, pp. 113-32, doi:10.37680/almanhaj.v8i2.9548.