Tanaya, Fista Yohana, Kisworo, and Guruh Prihatmo. 2021. “Combination of Zeolite, Charcoal and Water Spinach As Integrated Filters to Reduce Ammonia Level in Aquaponic System”. SCISCITATIO 2 (1):7-15. https://doi.org/10.21460/sciscitatio.2021.21.42.