Haniyyah Azhar and Lifia Citra Ramadhanti 2026. Proposed Improvement of Sodium Sulfate Storage System to Minimize Caking Defects Using DMAIC and FMEA Methods. Jurnal Sistem Teknik Industri. 28, 4 (Oct. 2026), 233–243. DOI:https://doi.org/10.32734/jsti.v28i4.25746.