[1]
W. Rahayu and W. Hariyanto, “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, vol. 5, p. 10.21070/acopen.5.2021.2149, Dec. 2021.