Design and Development of Smart Rainwater Harvesting Systems in Green Buildings Using Hybrid Energy and IoTAgung W. Biantoro, R.B. Abdul Majid, D. Vidayanti, A. Hidayat, S. Hidayat and Z. CitraBIO Web Conf., 189 (2025) 03003DOI: https://doi.org/10.1051/bioconf/202518903003