SUBSTITUTION OF ACID AND REACTIVE DYESTUFF MATERIALS IN THE WET BLUE SHEEP SKIN DYEING METHOD FOR NAPA LEATHER AND SUEDE GARMENTS ON WATER WASHING RESISTANCE AS A LABORATORY MANAGEMENT EFFORTS. Berkala Penelitian Teknologi Kulit, Sepatu, dan Produk Kulit , [S. l.], v. 24, n. 1, p. 22–28, 2025. DOI: 10.58533/p9ck7k13. Disponível em: http://e-jurnal.atk.ac.id/new-jurnal/index.php/bptkspk/article/view/109. Acesso em: 10 sep. 2025.