Evaluation of Drainage System at State University of Malang Campus 1Vita Ayu Kusuma Dewi, Mega Septia Sarda Dewi, Muhammad Abdul Rahman, Anie Yulistyorini and Syakira Salamah Kania MazuidaE3S Web Conf., 652 (2025) 11001DOI: https://doi.org/10.1051/e3sconf/202565211001