MAHMUDAH, Syahriatul; RINI, Widi Lstiyas; MAJID, Aditya Maulana. The Role of Portfolio Theory in Risk Management and Investment Decision Making. Magister : Manajemen Strategis dan Terapan, [S. l.], v. 1, n. 1, p. 30–36, 2024. Disponível em: http://ejournal.itbwigalumajang.ac.id/index.php/mgt/article/view/1370. Acesso em: 25 nov. 2025.