1. I. Bolded, S.A. Nasar, Vector Contol Of AC Drives (CRC Press, Mexico, 1992)
2. Paul C. Krause, Analysis of Electric Machinery (McGraw-Will, Singapore, 1987)
3. O.I. Okoro, Niger. J. Technol. 22, 46 (2003)
4. Divya Asija, Speed Control of Induction Motor Using Fuzzy-PI Controller, in ICMEE 2010, Vol. 2 (IEEE, 2010) p. V2-460, DOI: 10.1109/ICMEE.2010.5558463
5. Aamir Hashim, J. Eng. Comp. Sci. 15, 72 (2014)