“Legal Dualism in Land Controlover Grondkaart between PT Kereta Api Indonesia (Persero) and The Yogyakarta Sultanate”. YURISDIKSI : Jurnal Wacana Hukum Dan Sains, vol. 22, no. 4, Nov. 2026, pp. 849-62, https://doi.org/10.55173/yurisdiksi.v22i4.419.