PUTRI, Hana Tamara. The Consumer Confidence Index and the Promp Manufacturing Index on IDX Basic Material. Siber International Journal of Digital Business (SIJDB), [S. l.], v. 4, n. 1, p. 424–433, 2026. DOI: 10.38035/sijdb.v4i1.368. Disponível em: https://review.e-siber.org/SIJDB/article/view/368. Acesso em: 5 sep. 2026.