P. Maragatha Meenakshi, and J. Sathya. “On $\beta^\star$-Closed Spaces in Terms of Nets”. International Journal of Mathematics And its Applications 6, no. 4 (December 15, 2018): 1–4. Accessed May 4, 2024. http://ijmaa.in/index.php/ijmaa/article/view/320.