List of Articles A. Nasef Article 1 - F-Closedness in Bitopological Spaces 20.1001.1.22520201.2016.05.01.5.4 A. A. Nasef A. Azzam Journal of Linear and Topological Algebra , Issue 1 , Year , Winter 2016 Article 2 - Some topological operators via grills 20.1001.1.22520201.2016.05.03.5.8 A. A. Nasef A. Azzam Journal of Linear and Topological Algebra , Issue 4 , Year , Summer 2016 Article 3 - Preclosure operator and its applications in general topology 20.1001.1.22520201.2018.07.01.1.4 A. A. Nasef S. Jafari M. Caldas R. M. Latif A. A. Azzam Journal of Linear and Topological Algebra , Issue 1 , Year , Winter 2018 Article 4 - Weak separation axioms via almost-ID-sets 20.1001.1.22520201.2020.09.04.6.9 A. A. Nasef A. M. Elfky N. Youns R. Mareay Journal of Linear and Topological Algebra , Issue 5 , Year , Autumn 2020