J M, H., D. Chakravarthy, V. S, M. K T, B. A, and K. Sitharthan. “Metallurgy of Rotary Files- A Review: Metallurgy”. Journal of Current Medical Research and Opinion, vol. 4, no. 06, June 2021, p. 975−980, doi:10.15520/jcmro.v4i06.434.