“ANALYSIS OF WATER ABSORPTION AND TOTAL CHROME LEACHING TEST USING ATOMIC ABSORPTION SPECTROPHOTOMETER (AAS) ON PAVING BLOCK SAMPLES MADE FROM WASTE LEATHER SHAVING”. Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit 22, no. 2 (December 16, 2024): 115–126. Accessed December 22, 2024. https://e-jurnal.atk.ac.id/index.php/bptkspk/article/view/26.