HANIF, A.; HANUN, N. R.; FEBRIANSAH, R. E. Optimization of Stock Portfolio Using the Markowitz Model in the Era of the COVID-19 Pandemic. TIJAB (The International Journal of Applied Business), [S. l.], v. 5, n. 1, p. 37–50, 2021. DOI: 10.20473/tijab.V5.I1.2021.37-50. Disponível em: https://e-journal.unair.ac.id/TIJAB/article/view/25228. Acesso em: 2 dec. 2024.