Tracy Fitz-Inteseful, Joshua Sunkwa, and Dr. William Asiedu. “A Comparative Analysis of the Effectiveness of Recaptcha V3 Against Recaptcha V2, Hidden Fields, and Other Anti-Spam Techniques”. International Journal of Information Technology & Computer Engineering 5, no. 1 (December 9, 2024): 1–14. Accessed July 1, 2025. https://journal.hmjournals.com/index.php/IJITC/article/view/5046.