Rahmat Budi Santoso, Erawati Kartika, Ika Listyawati . Portfolio Diversification Opportunities On The Asean 5 Stock Market And Sectoral Stock Indexes On The Indonesian Stock Exchange. ICTMT [Internet]. 2023 Dec. 31 [cited 2024 Sep. 17];1(1):155-6. Available from: https://ictmt.stiepari.org/index.php/journal/article/view/59