ZAIDAAN RIZQ VINSA PUTRA; SUBIAKTO SUKARNO. PORTFOLIO OPTIMIZATION USING MARKOWITZ METHOD FOR CRYPTOCURRENCY, INDONESIA STOCK MARKET, AND GOLD (2014–2024). International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS), [S. l.], v. 5, n. 1, p. 345–352, 2025. DOI: 10.54443/ijebas.v5i1.2494. Disponível em: http://radjapublika.com/index.php/IJEBAS/article/view/2494. Acesso em: 7 mar. 2025.