Widjaja, Tri, et al. “Performance of Submerged Membrane Bioreactor Combined With Powdered Activated Carbon Addition for the Treatment of an Industrial Wastewater”. IPTEK The Journal for Technology and Science, vol. 21, no. 1, July 2025, pp. 18-22, https://journal.its.ac.id/index.php/jts/article/view/5864.