M. BILAL, A.; A. BASHIR, W. Photometric Assay of Nitrite in Various Samples. Rafidain Journal of Science, [S. l.], v. 24, n. 2, p. 60–83, 2013. DOI: 10.33899/rjs.2013.67483. Disponível em: https://edusj.uomosul.edu.iq/index.php/rsci/article/view/47692. Acesso em: 10 sep. 2025.