Harahap ES, Khaira I, Simanjuntak IF, Siagian I. Analisis Ketimpangan Pembangunan di Sumatera Utara. jecs [Internet]. 2024Dec.6 [cited 2025Apr.3];6(2):13-22. Available from: https://pusdikra-publishing.com/index.php/jecs/article/view/2205