Nusyirwan D, Prayetno E, Sumantri, Putra Perdana PP. Engineering Design Process of Arduino Uno-based Smart Classroom Technology . J. Innov. Technol. [Internet]. 2020Oct.30 [cited 2024Apr.25];1(2):72-8. Available from: https://ojs.umrah.ac.id/index.php/jit/article/view/3169