Mohammed Qasim Ibrahim, and Nazar Khalaf Hussein Al-Dikhil. “Optimization of Interval Type-2 Fuzzy Logic System By Using A New Hybrid Method of Whale Optimization Algorithm and Extreme Learning Machine”. Tikrit Journal of Pure Science, vol. 26, no. 2, Dec. 2022, pp. 126-3, doi:10.25130/tjps.v26i2.129.