Khudaraham, Ahmed Lateef, and Dhirgham Kamal Naji. “Design of A Dual-Wide Band BPF Utilizing Parallel Coupled Microstrip Lines and A Centered Arrow-Shaped Resonator”. Al-Nahrain Journal for Engineering Sciences, vol. 23, no. 2, Sept. 2020, pp. 153-8, https://doi.org/10.29194/NJES.23020153.