Indonesia Local Industry Structure and Firms Productivity in Industrial Area. Signifikan: Jurnal Ilmu Ekonomi, [S. l.], v. 10, n. 1, p. 93–112, 2021. DOI: 10.15408/sjie.v10i1.17197. Disponível em: https://journal.uinjkt.ac.id/signifikan/article/view/17197. Acesso em: 20 feb. 2026.