“Analisis Biaya dan Willingness to Pay Pengelolaan Limbah dengan IPAL Komunal di Sentra Industri Penyamakan Kulit Sukaregang: Cost and Willingness to Pay Analysis for Waste Management Using Communal Wastewater Treatment Plants in Sukaregang Leather Tanning Industry” (2025) Indonesian Journal of Agricultural Resource and Environmental Economics, 4(2), pp. 90–102. doi:10.29244/6xbb5r06.