ANALISIS PERBANDINGAN KINERA USAHA AYAM POTONG: PERSPEKTIF KEBUTUHAN SERTIFIKASI HALAL DI PASAR TRADISIONAL KOTA MEDAN. JOURNAL OF SCIENCE AND SOCIAL RESEARCH, [S. l.], v. 9, n. 5, p. 7571 – 7576, 2026. DOI: 10.54314/jssr.v9i5.7190. Disponível em: https://jurnal.goretanpena.com/index.php/JSSR/article/view/7190.. Acesso em: 10 oct. 2026.