Design and implementation of an IoT-based real-time water level monitoring system of belik river at yogyakarta city. J. Soft Comput. Explor. [Internet]. 23. studeni 2025. [citirano 25. kolovoz 2026.];6(3):206-14. Dostupno na: https://shmpublisher.com/index.php/joscex/article/view/621