Isa, M.S.M., A.N.L. Azmi, A.A.M. Isa, M.S.I. M.Zin, S. Saat, Z. Zakaria, I.M. Ibrahim, M. Abu, and A. Ahmad. 2017. “Textile Dual Band Circular Ring Patch Antenna under Bending Condition”. Journal of Telecommunication, Electronic and Computer Engineering (JTEC) 9 (3):37-43. https://jtec.utem.edu.my/jtec/article/view/1380.