Mohamad Fadhil NH, Karim J, Abd Rahman NH, Subahir S, Chan KM, Zainol Murad SA. Gain Enhancement of E-Shaped Microstrip Patch Antenna for Underground RFID Reader Application. IJIE [Internet]. 2025 Jul. 27 [cited 2026 Apr. 8];17(2):196-207. Available from: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/17152