Hazem. A. Khorshed and Mostafa A. El Gendy and Amer. Abd El-Razik, Fuzzy T-Neighborhood Groups Acting on Sets. journal = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology. February 2008, vol. 14(2). 140 - 144 [viewed 20 September 2024]. Available from: https://publications.waset.org/pdf/1866.