S. Sugito, R. Ratnawati, and V. F. Laba, “COMBINED TREATMENT OF LANDFILL LEACHATE USING COAGULATION-FLOCCULATION AND ANAEROBIC-AEROBIC BIOFILTER WITH BIOBALL”, Jurnal Bioteknologi dan Biosains Indonesia, vol. 11, no. 2, pp. 366–375, Dec. 2024.