CHENG, Yibai. The Valuation and Strategic Role of Amgen as an Anchor Stock in the Biopharmaceutical Industry Under Market Volatility. Journal of Innovation and Development, [S. l.], v. 13, n. 1, p. 294–300, 2025. DOI: 10.54097/am35dd94. Disponível em: https://drpress.org/ojs/index.php/jid/article/view/32259. Acesso em: 5 jul. 2026.