A. Tayebi Derazkola, A. Rahmani Firoozjaee, and M. Dehestani, “On the Internal Enrichment Implementation for Non-Convex Paths, Discontinuities and Crack Problems”, ijie, vol. 14, no. 4, pp. 171–187, Jun. 2022, Accessed: May 19, 2024. [Online]. Available: https://penerbit.uthm.edu.my/ojs/index.php/ijie/article/view/7793