Ermelia, Tiara, Imsar Imsar, and Rahmat Daim Harahap. “Analisis Konsep Green Economy Terhadap Potensi Pengembangan Pariwisata Halal Di Sumatera Utara”. Jurnal Proaksi 10, no. 2 (June 30, 2023): 226–245. Accessed October 22, 2026. https://www.e-journal.umc.ac.id/index.php/JPK/article/view/4049.