Abdul-razaaq Jamal, A., Ysseen Tahaa, K. and Abd Al-Majeed Hayawi, G. (2022) “Experimental Study of Scour Downstream Piano Key Weir Type C with Changing Height of Weir Width of Keys and Apron Solid”, Al-Rafidain Engineering Journal (AREJ), 27(1), pp. 193–204. doi: 10.33899/rengj.2021.130402.1101.