M. ISMAIL, S. KHAN, M. NAEEM, and N. AHMAD. “Stego Block Chaining: A Secure 4LSB Steganography Technique”. Sindh University Research Journal - SURJ (Science Series) 48, no. 1 (March 17, 2016). Accessed September 3, 2026. https://sujo.usindh.edu.pk/index.php/SURJ/article/view/5035.