1.
Rasdanu R, Hidayat RA, Albart N. Investment Analysis of ITMG and PTBA Stocks in 2024 Using the Modern Portfolio Theory Approach. Eduvest [Internet]. 2025Nov.28 [cited 2026Oct.7];5(11):14068-7. Available from: http://www.eduvest.greenvest.co.id.submitjurnal.id/index.php/edv/article/view/51635