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Mery Octavianna Lubis R, Maya Mei Shanty A. Penta Helix Model: Developing Economic Potential Through Halal Tourism And Local Cuisine Padangsidempuan City. Jurnal Ekonomi [Internet]. 2024 Dec. 2 [cited 2025 May 31];13(04):659-71. Available from: https://ejournal.seaninstitute.or.id/index.php/Ekonomi/article/view/5571