Miranda Siregar, Nisa Ilannur Lubis, Nirmala Sari. Analisis Tingkat Pengangguran Provinsi Sumatra Utara Menggunakan Sign Test dan Wilcoxon Test. IERJ [Internet]. 2024 Dec. 5 [cited 2026 May 8];2(3):1750-61. Available from: https://shariajournal.com/index.php/IERJ/article/view/786