Nazari, N. A., Mohd Nordin, I. N. A., Muhammad Razif, M. R., Zulkarnain, N., & Khamis, N. (2019). Detection of Active Mobile Phone in Exam Hall. ELEKTRIKA- Journal of Electrical Engineering, 18(3-2), 25–31. https://doi.org/10.11113/elektrika.v18n3-2.194