Amin, Sadia, et al. “Comparison of Efficacy of H-File and ProTaper for Removal of Gutta-Percha from Root Canal in Non-Surgical Endodontic Retreatment: An in-Vitro Study”. Biological and Clinical Sciences Research Journal, vol. 6, no. 6, June 2025, pp. 109-12, doi:10.54112/bcsrj.v6i6.1833.