Ariwisanto Sianturi, F., Sijabat, P.I. and Sitohang, A. 2021. Application of the rough set method to the level of customer satisfaction on service quality. Sinkron : jurnal dan penelitian teknik informatika. 5, 2 (Apr. 2021), 266-274. DOI:https://doi.org/10.33395/sinkron.v5i2.10863.