Marini, Agusti, and Wiwit Hariyanto. “Stock Portfolio Risk and Return: Indonesia Vs. China During Covid-19”. Academia Open 9, no. 1 (September 27, 2023): 10.21070/acopen.9.2024.3782. Accessed July 22, 2024. https://acopen.umsida.ac.id/index.php/acopen/article/view/3782.