Yusmanto, Yunan, Harits Ar Rosyid, and Aji Prasetya Wibawa. “Design and Development of Face Recognition-Based Security System Using Expression Game As Liveness Detection”. Bulletin of Social Informatics Theory and Application 8, no. 2 (December 8, 2024): 280–294. Accessed September 1, 2025. https://pubs.ascee.org/index.php/businta/article/view/756.