MULKAN SYAHPUTRA; SUPRIADI; MARPAUNG, P. The Mapping of Irrigated Paddy Fields which were Polluted by Detergent Waste in Kolam Village, Percut Sei Tuan Sub-district, Deli Serdang District. Jurnal Online PERTANIAN TROPIK, v. 8, n. 2, p. 144-149, 10 Jan. 2022.