Literature Analysis and Future Research Framework in Improvement and Substitutes Strategies. Eksis: Jurnal Riset Ekonomi dan Bisnis, [S. l.], v. 16, n. 1, p. 57–64, 2021. DOI: 10.26533/eksis.v16i1.812. Disponível em: https://ejournal.stiedewantara.ac.id/001/article/view/812. Acesso em: 29 oct. 2026.