Continuous improvement in the footwear industry using the Six Sigma methodology. Case study: “Exclusivos Botero”. Ingeniería, Sostenibilidad y Sociedad, [S. l.], v. 1, n. 1, p. 8–17, 2020. Disponível em: https://ojs.unipamplona.edu.co/index.php/iss/article/view/1011. Acesso em: 16 oct. 2025.