A. Fadhil, M. Jasim Farhan, J. K. Ali, and A. Alsultani, “A Fractal-Based Compact Tunable Bandpass Filter with High Selectivity and Band Rejection”, J. eng. sustain. dev., vol. 29, no. 6, pp. 794–799, Nov. 2025, doi: 10.31272/jeasd.2627.