TumorXAI: Self-Supervised Deep Learning Framework for Explainable Brain MRI Tumor Classification. - Abrar Hossain Zahin; Amit Kumar Saha; Tanvir Mridha; Saifur Rahman; Jannatul Ferdous Prome; Raima Husna; Israt Jahan; Ahmed Wasif Reza (CoRR, 2026)