mahmood, anfal, أحمد, and Ahmed S Nori. “Improving Security Using Cryptography Based on Smartphone User Locations”. Journal of Education and Science (JES) 31, no. 2 (June 1, 2022): 94–104. Accessed August 4, 2025. https://rjps.uomosul.edu.iq/index.php/edusj/article/view/18478.