Halim, H. M. A.-., S. B. Salama, and S. K. A.-. Burtamani. “?LIGAND EFFECT ON OXIDATION RATES OF CYSTEINE BY IRON (III) COMPLEXES”. Biological Sciences - PJSIR, vol. 41, no. 2, Apr. 1998, pp. 71-74, https://v2.pjsir.org/index.php/biological-sciences/article/view/2235.