Team, Support. “\tau_1\tau_2-Q* Closed Sets: K. Kannan, K. Chandrasekhara Rao”. Thai Journal of Mathematics 11, no. 2 (August 1, 2013): 439–445. Accessed May 4, 2024. https://thaijmath2.in.cmu.ac.th/index.php/thaijmath/article/view/390.