WINANTO, A. R.; WAFIROTIN, K. Z. Pemberdayaan Sektor Informal di Kabupaten Ponorogo. Al Tijarah, [S. l.], v. 2, n. 2, p. 258–275, 2016. DOI: 10.21111/tijarah.v2i2.745. Disponível em: https://ejournal.unida.gontor.ac.id/index.php/altijarah/article/view/745. Acesso em: 3 jul. 2024.