Maruddani, B, E Sandi, and M Fadhil Naufal Salam. “Design and Implementation of Low-Cost Wideband Vivaldi Antenna for Ground Penetrating Radar”. KnE Social Sciences 3, no. 12 (March 25, 2019): 498–506. Accessed May 3, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/4118.