Utami, Eristy M., Irfan Afrian, Aldora A. Rosano, Maritha A. Nabilqis, Reinsya E. Fahrenthy, and Mega C. Florensita. 2022. “THE DIFFERENCES IN STOCK PORTFOLIO PERFORMANCE BEFORE AND DURING THE COVID-19 PANDEMIC: STUDY ON THE LQ-45 INDEX AND THE JAKARTA ISLAMIC INDEX”. CENTRAL ASIA AND THE CAUCASUS 23 (1): 4487-96. https://ca-c.org/CAC/index.php/cac/article/view/442.