I. Rajasekaran, R. Bhavani, and O. Nethaji. “On Nano $\wedge_{rg}$-Closed Sets”. International Journal of Mathematics And its Applications 5, no. 4 - E (December 15, 2017): 693–698. Accessed April 22, 2026. http://ijmaa.in/index.php/ijmaa/article/view/1328.