Fadli, H., E. Gravitiani, and M. Rahardjo. “Externality Value of Waste Power Plant (PLTSa) in TPA Terjun Medan Marelan Using Benefit Transfer Method”. Randwick International of Social Science Journal, Vol. 4, no. 3, July 2023, pp. 670-8, doi:10.47175/rissj.v4i3.769.