[1]
Meliala, F.U. and Sukarno, S. 2023. Optimal Investment Portfolio Analysis Using The Markowitz Model For Stock In Each Sector In The Indonesia Stock Market During Covid 19 (2020-2021). Journal Research of Social Science, Economics, and Management. 2, 8 (Mar. 2023), 1884 –. DOI:https://doi.org/10.59141/jrssem.v2i08.399.