Point and Figure Portfolio Optimization using Hidden Markov Models and Its Application on the Bumi Resources Tbk Shares. InPrime: Indonesian Journal of Pure and Applied Mathematics, [S. l.], v. 3, n. 1, p. 44–52, 2021. DOI: 10.15408/inprime.v3i1.19376. Disponível em: https://journal.uinjkt.ac.id/inprime/article/view/19376. Acesso em: 21 nov. 2025.