(1)
Rahayu, W.; Hariyanto, W. Analysis of Portfolio Expected Returns As a Material Consideration for Investors in Choosing Investments in the Pandemic Period (Formation of Optimal Portfolios Using the Black Litterman Model on Hang Seng Stocks for the 2017-2019 Period). acopen 2021, 5, 10.21070/acopen.5.2021.2149.