Nand S, Ali SHS, Musa S, Su’ud MM. A Real-Time Deep Learning Framework for Classroom Facial Expression Recognition: Performance Optimization and Model Evaluation. Eng. Technol. Appl. Sci. Res. [Internet]. 2026 Jun. 6 [cited 2026 Jun. 8];16(3):35523-8. Available from: https://mail.etasr.com/index.php/ETASR/article/view/17088