CHEN, Zhiyu. Portfolio Analysis and Investment Value Based on US Stock Market. BCP Business & Management, [S. l.], v. 44, p. 883–890, 2023. DOI: 10.54691/bcpbm.v44i.4973. Disponível em: https://bcpublication.org/index.php/BM/article/view/4973. Acesso em: 3 sep. 2026.