Tran, Cuong Dinh, et al. “An Improved Current-Sensorless Method for Induction Motor Drives Applying Hysteresis Current Controller”. Indonesian Journal of Electrical Engineering and Informatics (IJEEI), vol. 9, no. 1, Jan. 2021, pp. 130-4, https://doi.org/10.52549/ijeei.v9i1.1619.