CAMERO JIMÉNEZ, José W.; HUAMANÍ LEÓN, Víctor A. Quality assurance criteria for assay results in the determination of barium by atomic absorption spectrometry in wastewater by Shewhart control charts. TECNIA, [S. l.], v. 23, n. 1, p. 25–32, 2013. DOI: 10.21754/tecnia.v23i1.64. Disponível em: https://revistas.uni.edu.pe/index.php/tecnia/article/view/64. Acesso em: 3 jul. 2024.