Harini, Bernadeta Wuri. “Some Permanent Magnet Synchronous Motor (PMSM) Sensorless Control Methods Based on Operation Speed Area”. Jurnal Ilmiah Teknik Elektro Komputer Dan Informatika, vol. 7, no. 1, Apr. 2021, pp. 59-71, doi:10.26555/jiteki.v7i1.20519.