Experimental study on scour at unpaved road shoulderWahyu Widiyanto, Litan Dey, Sanidhya Nika Purnomo, Purwanto Bekti Santoso and Srigunawan SugihartoMATEC Web Conf., 402 (2024) 04003DOI: https://doi.org/10.1051/matecconf/202440204003