Ali Ibraheem Khaleel, Mohsin Hamza Bakir, and Israa Talib Humedy. “Determination of Pyridoxine HCl by Oxidative Coupling Using N,N-Di Methyl Paraphenylene Diamine Dihydrochloride (DMPPH) Presence of Potassium hexacynoferrate(III) in Basic Medium”. Tikrit Journal of Pure Science 21, no. 4 (February 7, 2023): 83–90. Accessed June 18, 2025. https://tjpsj.org/index.php/tjps/article/view/1057.