Silaen, S. E.; Khalida, Q.; Muhtaram, Z.; Sitorus, P. B. Analisis SWOT Strategi Pengembangan Usaha Peternakan Sapi Potong Pada Sistem Ekstensif Dan Semi-Intensif Di Kabupaten Langkat: SWOT Analysis of Development Strategies for Beef Cattle Farming Businesses under Extensive and Semi-Intensive Systems in Langkat Regency. JPI 2026, 28, 222-238.