Widjaja M, Halim D, Andarini R. The Development of an IoT-based Indoor Air Monitoring System Towards Smart Energy Efficient Classroom. Ultima Computing : Jurnal Sistem Komputer [Internet]. 17Jul.2022 [cited 19Apr.2024];14(1):28-5. Available from: https://ejournals.umn.ac.id/index.php/SK/article/view/2565