KALFIN; HIDAYANA, Rizki Apriva. Optimization of Stock Portfolio in Indonesian Health Sector using Markowitz Modern Portfolio Theory. International Journal of Mathematics, Statistics, and Computing, [S. l.], v. 3, n. 1, p. 1–5, 2025. DOI: 10.46336/ijmsc.v3i1.182. Disponível em: https://ejournal.corespub.com/index.php/ijmsc/article/view/182. Acesso em: 2 oct. 2025.