Ariwisanto Sianturi, F., Sijabat, P. I. ., & 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), 266-274. https://doi.org/10.33395/sinkron.v5i2.10863