The value chain in productivity of micro, small, and medium-sized enterprises (MSMEs) amid the COVID-19. Gestión en el Tercer Milenio, [S. l.], v. 24, n. 48, p. 161–165, 2021. DOI: 10.15381/gtm.v24i48.21829. Disponível em: https://revistasinvestigacion.unmsm.edu.pe/index.php/administrativas/article/view/21829.. Acesso em: 16 aug. 2024.