N. Balamani and A. Parvathi (2017) “$\psi^{*}\alpha$-Closed Sets in Bitopological Spaces”, International Journal of Mathematics And its Applications, 5(4 - D), pp. 449–456. Available at: http://ijmaa.in/index.php/ijmaa/article/view/1291 (Accessed: 18 May 2024).