Widjaja, Moeljono, Dareen Halim, and Rahmi Andarini. “The Development of an IoT-Based Indoor Air Monitoring System Towards Smart Energy Efficient Classroom”. Ultima Computing : Jurnal Sistem Komputer 14, no. 1 (July 17, 2022): 28-35. Accessed November 24, 2024. https://ejournals.umn.ac.id/index.php/SK/article/view/2565.