“Optimization of Laundry Wastewater Treatment Using Zeolite and Activated Carbon Media in a Compact Dual-Tube Combination Filter: Optimalisasi Pengolahan Air Limbah Laundry Menggunakan Media Zeolit Dan Karbon Aktif Dalam Filter Kombinasi Dua Tabung Kompak”. SPECTA Journal of Technology, vol. 9, no. 3, Dec. 2025, pp. 303-14, https://doi.org/10.35718/specta.v9i3.8481751.