Rinaima, C. A., Fauziyah, N. and Kamilah, A. N. (2025) “OPTIMIZING SHARIA INVESTMENT PORTFOLIOS USING MODERN PORTFOLIO THEORY: A CASE STUDY OF ICBP AND SIDO IN INDONESIA STOCK MARKET ”, Airlangga International Journal of Islamic Economics and Finance, 8(02), pp. 123–138. Available at: https://e-journal.unair.ac.id/AIJIEF/article/view/74926 (Accessed: 5 November 2025).