DELGADO, G. Validation and verification of test methods. A dilemma in testing laboratories and accreditation audits. Universitas (León): Revista Científica de la UNAN León, [S. l.], v. 3, n. 2, p. 14–21, 2009. DOI: 10.5377/universitas.v3i2.1661. Disponível em: https://camjol.info/index.php/UNIVERSITAS/article/view/1661. Acesso em: 17 jul. 2024.