Hock Kin, T., Arsad, N., Hadri Hafiz Mokhtar, M., Saiful Dzulkefly Zan, M., Hidayah Azeman, N., & Ashrif A Bakar, A. (2019). Development of Internet of Things Optical Sensor based on Surface Plasmon Resonance Phase Interferometry. International Journal of Engineering & Technology, 8(1.2), 220-225. https://doi.org/10.14419/ijet.v8i1.2.24906