Esa, Fahmiruddin, Nurdiana Anis Ibrahim, Huda A Majid, Man Seng Sim, and Kok Yeow You. 2026. “X-Band Metamaterial-Based Resonant Sensor for Food Quality Monitoring”. Applied Science and Engineering Progress 19 (4):8195. https://doi.org/10.14416/j.asep.2026.06.011.