Raihanuddin, M. and Kahar, K. 2026. Effect of Coconut Shell Activated Carbon Adsorbent Media Particle Size on Reducing Iron (Fe) Content in Clean Water in Garut Food Industry, West Java. Ruwa Jurai: Jurnal Kesehatan Lingkungan. 20, 2 (Aug. 2026), 106–113. DOI:https://doi.org/10.26630/rj.v20i2.5263.