Fadhilah, I. , Hamdan, A.M. and Razi, F. 2023. Restaurant Liquid Waste Treatment into Clean Water Using Graded Filter-Ultrafiltration Membrane Polyethersulfone (PES) Method. Jurnal Teknik Kimia dan Lingkungan. 7, 2 (Oct. 2023), 74–84. DOI:https://doi.org/10.33795/jtkl.v7i2.1691.