Pohan, Saidah, and Marliyah Marliyah. “Strategy of the Department of Cooperatives and Small Business of North Sumatra Province in the Development of Cooperatives in North Sumatera”. Jurnal Fokus Manajemen 2, no. 1 (April 22, 2022): 11 –16. Accessed April 19, 2024. https://jurnal.unived.ac.id/index.php/fokusman/article/view/2140.