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ANALISIS PERBANDINGAN KINERA USAHA AYAM POTONG: PERSPEKTIF KEBUTUHAN SERTIFIKASI HALAL DI PASAR TRADISIONAL KOTA MEDAN. JSSR [Internet]. 2026 Oct. 10 [cited 2026 Oct. 29];9(5):7571 – 7576. Available from: https://goretanpena.com/jurnal/index.php/JSSR/article/view/7190