Alpianti Manurung, Sartika, and Almita Wiguna. “Calligraphy Business In Islamic Economic Review At An-Nida Calligraphy House Medan North Sumatra”. Jurnal Eduslamic 1, no. 1 (July 9, 2023). Accessed March 27, 2025. https://journal.yayasanhaiahnusratulislam.or.id/index.php/eduslamic/article/view/45.