YE, Zhiang. The Impact of COVID-19 on Yield of Precious Metal: an Empirical Evidence. BCP Business & Management, [S. l.], v. 26, p. 601–610, 2022. DOI: 10.54691/bcpbm.v26i.2013. Disponível em: https://bcpublication.org/index.php/BM/article/view/2013. Acesso em: 23 sep. 2026.