Elhamayel, M. Abo, and Zabidin Salleh. “On (i,j) Supra R-Open Sets and Their Applications on Supra Bitopological Spaces”. Journal of Mathematical Sciences and Informatics 3, no. 1 (June 15, 2023). Accessed September 12, 2026. https://journal.umt.edu.my/index.php/jmsi/article/view/372.