M. NAYIF, S.; H. MOHAMMED, D. Spectrophotometric Determination of Isoniazid in Pharmaceutical Preparations Using Oxidative Coupling Reaction with 2,4-dinitrophenylhydrazine. Rafidain Journal of Science, [S. l.], v. 32, n. 1, p. 149–160, 2023. DOI: 10.33899/rjs.2023.178227. Disponível em: https://edusj.uomosul.edu.iq/index.php/rsci/article/view/47674. Acesso em: 10 sep. 2025.