Six Sigma: A novel approach to pharmaceutical industry. International Journal of Advances in Pharmaceutics, [S. l.], v. 2, n. 6, p. 71–74, 2014. DOI: 10.7439/ijap.v2i6.1413. Disponível em: https://ssjournals.co.in/index.php/ijap/article/view/1413. Acesso em: 6 jan. 2026.