Imanuel, Dionezra Bagus, et al. “Potential of Nanotechnology-Based Nanomaterials and Biochar for Tofu Wastewater Filtration: A Review on Clean Water Sustainability”. Waste Handling and Environmental Monitoring, vol. 2, no. 1, Feb. 2025, doi:10.61511/whem.v2i1.2025.1653.