Dwifany, Vera, and Joko Suharianto. “Analisis Laju Pertumbuhan Ekonomi, Upah Minimum Provinsi, Dan Nilai Tukar Rupiah, Terhadap Penanaman Modal Asing Di Sumatera Utara: Pendekatan Error Correction Model (ECM)”. RIGGS: Journal of Artificial Intelligence and Digital Business 5, no. 2 (July 31, 2026): 23538–23549. Accessed August 25, 2026. http://journal.ilmudata.co.id/index.php/RIGGS/article/view/12815.