River Boundary Delineation under PUPR Regulation 28/PRT/M/2015 Land Ownership Implications. yurisdiksi [Internet]. 2026 Jul. 22 [cited 2026 Jul. 22];22(4):689-97. Available from: https://yurisdiksi.unmerbaya.ac.id/index.php/yurisdiksi/article/view/406