Siregar G, Perkasa T, Sadeli A, Ramadhani R. EVALUATION OF THE SUSTAINABILITY SHEEP DEVELOPMENT IN GALANG, DELI SERDANG DISTRICT. nukleus [Internet]. 21Jun.2026 [cited 22Jun.2026];13(1):43-. Available from: https://ejurnal.undana.ac.id/index.php/nukleus/article/view/25433