M. Saeedullah and S. W. Husain, “EVALUATION OF MICROHARDNESS OF A BRAND OF STAINLESS STEEL K FILES”, Pak Oral Dent J, vol. 37, no. 4, pp. 653–656, Dec. 2017, Accessed: Feb. 27, 2026. [Online]. Available: https://www.podj.com.pk/index.php/podj/article/view/40