Hemmuang, Jinnattha, and Chuwong Phongcharoenpanich. 2021. “Design of Circular Ring Patch Antenna on Split-Ring Resonator Metasurface for Dual-Band Applications”. Engineering and Technology Horizons 38 (2):31-39. https://ph01.tci-thaijo.org/index.php/lej/article/view/244461.