“Sheep Productivity in the Baznas Program at the Subur Berkah Group: An Analysis Based on Farmers’ Age Differences”. Jurnal Peternakan Lingkungan Tropis 8, no. 1 (March 31, 2025). Accessed August 27, 2026. http://e-journals2.unmul.ac.id/index.php/jpltrop/article/view/5176.