WASET
    J. Mahanta and  P.K. Das,  On Fuzzy Weakly-Closed Sets.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2013, vol. 74(2). 295 - 300
    [viewed 07 May 2024]. Available from: https://publications.waset.org/pdf/16774.