OTIVRIYANTI, GEBY, et al. “Kajian Strategi Pengurangan Sampah Dan Potensi Penerapan Ekonomi Sirkuler Pada Pengelolaan Sampah Di Kabupaten Toba Sumatera Utara: Study of Waste Reduction Strategy and The Potential Application of Circular Economy in Solid Waste Management in Toba Regency of North Sumatera”. Jurnal Teknologi Lingkungan, vol. 24, no. 2, July 2023, pp. 220-7, doi:10.55981/jtl.2023.653.