A. AL-LUHAIBY, R.; ALENIZZI, M. Spectrophotometric Determination of Thiamine hydrochloride Via Oxidative Coupling Reaction Using 4-Aminoantipyrine. Journal of Education and Science (JES), [S. l.], v. 29, n. 4, p. 62–75, 2020. DOI: 10.33899/edusj.2020.126895.1062. Disponível em: https://ojs.uomosul.edu.iq/index.php/edusj/article/view/24400. Acesso em: 6 aug. 2025.