MANIRAJ, V; PORSELVI, S. Present Imaging and Facial Gratitude. International Journal of Computer Sciences and Engineering, [S. l.], v. 3, n. 5, p. 351–356, 2015. Disponível em: https://ijcse.isroset.org/index.php/j/article/view/552. Acesso em: 2 feb. 2026.