N. Seenivasagan, O. Ravi, A. D. Ramesh Babu, and M. Rajakalaivanan. “Intuitionistic Fuzzy $\ddot{g}$-Closed Sets”. International Journal of Mathematics And its Applications 4, no. 1 - D (March 15, 2016): 47–57. Accessed May 19, 2024. http://ijmaa.in/index.php/ijmaa/article/view/616.