“Analisis Daya Saing Usahatani Porang di Kecamatan Dagangan Kabupaten Madiun: The analysis of the Porang farming competitiveness in Dagang District, Madiun Regency” (2024) Indonesian Journal of Agricultural Resource and Environmental Economics, 3(1), pp. 1–13. doi:10.29244/ijaree.v3i1.50232.