Mingka, Hardian Aditya, Fauzi Arif Lubis, and Rahmat Daim Harahap. “Analisis Efek Domino Covid-19 Terhadap Pertumbuhan Investor Pasar Modal di Sumatera Utara”. Maro: Jurnal Ekonomi Syariah dan Bisnis 6, no. 2 (December 10, 2023): 385–392. Accessed August 15, 2025. https://www.ejournal.unma.ac.id/index.php/maro/article/view/7514.