“THE EFFECT OF HYDRAULIC RETENTION TIME (HRT) AND AERATION RATE ON THE REMOVAL OF COD, TSS, AND COLOR IN BATIK WASTEWATER USING A SEQUENCING BATCH REACTOR (SBR)”, LJEE, vol. 6, no. 1, pp. 33–41, Oct. 2025, Accessed: Oct. 18, 2026. Available: https://journal.ar-raniry.ac.id/index.php/lingkar/article/view/8503