P.Saravanaperumal, and S. Murugesan. “Weakly $(1,2)^\ast$-Fuzzy Generalized-Closed Sets”. International Journal of Mathematics And its Applications 4, no. 1 - A (January 30, 2016): 149–158. Accessed July 3, 2024. https://ijmaa.in/index.php/ijmaa/article/view/555.