Radityaningrum, Arlini Dyah, and Maritha Nilam Kusuma. “Treatment of Household Grey Water Using a Series Anaerobic Biofilter - Wetland”. Nusantara Science and Technology Proceedings (October 16, 2018): 44–49. Accessed July 31, 2025. https://nstproceeding.com/index.php/nuscientech/article/view/13.