Adinatha C. Upadhya, and M. K. Mamata. “Comparative Properties of Nano $\pi Gp$-Regular and Nano $\pi Gp$-Normal Spaces”. International Journal of Mathematics And Its Applications, vol. 13, no. 2, July 2025, pp. 235-41, http://ijmaa.in/index.php/ijmaa/article/view/1702.