Bakr, D. K., S. S. Saleem, and B. K. Amin. “Effect of Sodium Hypochlorite, Chlorhexidin and EDTA on Dentin Microhardness”. Zanco Journal of Medical Sciences (Zanco J Med Sci), vol. 20, no. 1, Apr. 2016, p. 1175_1179, doi:10.15218/zjms.2016.0006.