SABAH A. TAMER; TAHA H. JASIM. ζ-Open Sets and ζ-Continuity. Tikrit Journal of Pure Science, [S. l.], v. 28, n. 3, p. 96–100, 2023. DOI: 10.25130/tjps.v28i3.1431. Disponível em: https://tjps.tu.edu.iq/index.php/tjps/article/view/1431. Acesso em: 17 may. 2024.