Y Iliyasu, A., Hamid, M. R., A Rahim, M. K., Aminu-Baba, M. and Mohd Yusof, M. F. (2019) “Compact Wideband Frequency Reconfigurable Metamaterial Antenna Design”, ELEKTRIKA- Journal of Electrical Engineering, 18(1), pp. 22–25. doi: 10.11113/elektrika.v18n1.145.