“Application of Whale Optimization Algorithm Based FOPI Controllers UPQC to Mitigate Harmonics and Voltage Instability in Modern Distribution Power Grids”, IJSHRE, vol. 12, no. 5, Jul 2024, Diakses: Okt 21, 2026. Tersedia pada: https://ijournals.in/journal/index.php/ijshre/article/view/270