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ANALISIS PERMASALAHAN PENGELOLAAN SUNGAI DELI (PROBLEM ANALYSIS OF DELI RIVER MANAGEMENT). Inovasi [Internet]. 2018 Aug. 8 [cited 2026 Jan. 11];14(1):77-82. Available from: https://jurnal.sumutprov.go.id/index.php/inovasi/article/view/89