Agfah QS, Azhari M. Comparative Analysis of Abnormal Returns of Stocks and UBS Gold Before and After the Announcement of the Covid-19 Pandemic. Almana [Internet]. 2021 Apr. 24 [cited 2026 Feb. 10];5(1):64-70. Available from: https://journalfeb.unla.ac.id/index.php/almana/article/view/1541