Setyadi. The Impact of Distance and Angle of Installation of Impermeable Groins on the Percentage of Riverbank Erosion in a 45°, 90°, and 135° River Bend. MIJR [Internet]. 2023 Nov. 30 [cited 2025 Jul. 4];1(3):116-2. Available from: http://publishing.impola.co.id/index.php/MIJR/article/view/52