TAHA H. JASIM; ALI A. SHIHAB; SHAYMAA A. HAMEED. Anew Types of Contra Continuity in Bi-Supra Topological Space. Tikrit Journal of Pure Science, [S. l.], v. 20, n. 4, p. 170–176, 2023. DOI: 10.25130/tjps.v20i4.1232. Disponível em: https://tjps.tu.edu.iq/index.php/tjps/article/view/1232. Acesso em: 19 may. 2024.