SAPUTRA, Moch Panji Agung; HIDAYANA, Rizki Apriva; LAKSITO, Grida Saktian. Investment Portfolio Optimization using Mean-Semi Standard Deviation Model (Case Study: BBNI, BBCA, BMRI, TLKM, and ANTM). Operations Research: International Conference Series, [S. l.], v. 5, n. 4, p. 146–154, 2025. DOI: 10.47194/orics.v5i4.353. Disponível em: https://www.iorajournal.org/index.php/Orics/article/view/353. Acesso em: 14 jan. 2026.