Ahmed I, Awos Kh. Ali, Mahmood S. Mahmood. Employing Hybrid Watermarking to Improve Email Security Against Cyber Attacks. jscdm [Internet]. 2025 Jun. 30 [cited 2026 Apr. 8];6(1):435-47. Available from: https://publisher.uthm.edu.my/ojs/index.php/jscdm/article/view/20220