putri valencia et al. 2026. ENVIRONMENTAL DESTRUCTION BT PT. SUMATRA TOBACCO TRADING COMPANY: FILLING OF A RIVER CHANNEL IN BELAWAN. Jurnal Ilmiah Universitas Satya Negara Indonesia. 4, 1 (Feb. 2026), 27–31. DOI:https://doi.org/10.59408/jisni.v4i1.81.