Oktavia, Swastika, et al. “Toxicity of Decolorized Batik Wastewater on Common Carp Using Combination of Chitosan and Spent Mushroom Substrate”. Gema Lingkungan Kesehatan, vol. 23, no. 1, Jan. 2025, pp. 191-6, doi:10.36568/gelinkes.v23i1.138.