SIHOMBING, J. RISIKO PADA PORTOFOLIO SAHAM. Jurnal Ekonomis, [S. l.], v. 3, n. 1, p. 55-75, 2009. DOI: 10.58303/jeko.v3i1.527. Disponível em: https://jurnal.unai.edu/index.php/jeko/article/view/527. Acesso em: 23 jul. 2024.