UTILIZATION OF CHROME-TANNED LEATHER SHAVING AND BUFFING WASTE AS RAW MATERIALS FOR KEYCHAINS USING POLYURETHANE ADHESIVE. Settings Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit [Internet]. 2026 Jun. 30 [cited 2026 Aug. 6];25(1):23-30. Available from: https://e-jurnal.politeknikatk.ac.id/index.php/bptkspk/article/view/138