“Kecenderungan Konvergensi Ekonomi Antardaerah Di Provinsi Sumatera Utara”. Journal of Regional and Rural Development Planning (Jurnal Perencanaan Pembangunan Wilayah dan Perdesaan) 2, no. 1 (June 7, 2018): 90–103. Accessed January 12, 2026. https://journal.ipb.ac.id/p2wd/article/view/21787.