Esi, A., and N. Subramanian. “Wijsman Rough Statistical Convergence on Triple Sequences”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 32, no. 3 (April 6, 2017): 13–27. Accessed September 13, 2025. https://www.gssrr.org/JournalOfBasicAndApplied/article/view/7103.