Muchlish, Muslich, et al. “The Effect of Sand Mining on River Erosion and Sedimentation (Case Study in Tanjung Alam Village, Sei Dadap District, Asahan Regency)”. Eksergi, vol. 18, no. 2, Nov. 2021, pp. 65-70, doi:10.31315/e.v18i2.5290.