O. RAVI; S. PIOUS MISSIER; K. MAHABOOB HASSAIN SHERIEFF. On (1,2)*-r⍵-Closed Sets and (1,2)*-r⍵-Open Sets. Jordan Journal of Mathematics and Statistics, [S. l.], v. 5, n. 1, p. 19–35, 2025. Disponível em: https://jjms.yu.edu.jo/index.php/jjms/article/view/1142. Acesso em: 10 sep. 2025.