Devi, R., A. Selvakumar, M. Parimala, and S. Jafari. 2011. “On Strongly Î±-ð˜-ð˜–ð‘ð‘’ð‘› Sets and a New Mapping”. CUBO, A Mathematical Journal 13 (1):1–10. https://doi.org/10.4067/S0719-06462011000100001.