A. B. Patil, S. P. Toppo, and D. RKP Singh, “Digital Image Correlation (DIC) Technique for Fatigue Crack Growth Analysis Using ∆CTOD Criteria”, IJET, vol. 7, no. 4.38, pp. 1362–1364, Dec. 2018, doi: 10.14419/ijet.v7i4.38.27874.