Yusoff, M. F. M., Sobri, M. A. M., Zubir, F., & Johari, Z. (2019). Multiband hairpin-line bandpass filters by using metamaterial complimentary split ring resonator. Indonesian Journal of Electrical Engineering and Informatics (IJEEI), 7(2), 289-294. https://doi.org/10.52549/ijeei.v7i2.1172