Purba, S., Marpaung, S., Gultom, R. and Silalahi, F. (2025) “Analisis Ketersediaan Daging Sapi Potong di Kabupaten Toba Menggunakan Model Sistem Dinamik”, Jurnal Ilmiah Wahana Pendidikan, 11(7.D), pp. 243-253. Available at: https://www.jurnal.peneliti.net/index.php/JIWP/article/view/11218 (Accessed: 1June2026).