Utilization of Rainwater Puddles at Campus I State University of Malang Muhammad Abdul Rahman, Anie Sulistyorini, Titi Rahayuningsih, Eko Setyawan, Vita Ayu Kusuma Dewi and Mega Septia Sarda Dewi E3S Web Conf., 445 (2023) 01021 Published online: 14 November 2023 DOI: 10.1051/e3sconf/202344501021