Rosyid, A. N. ., Zunaidi, R. A. ., & Dimyati, A. F. . (2024). Analysis Of Improving Service Quality At The Ssctelkom Surabaya Institute Of Technology Using The Lean Six Sigma Method. Sinkron : Jurnal Dan Penelitian Teknik Informatika, 8(3), 1326-1345. https://doi.org/10.33395/sinkron.v8i3.13657