KUMAR, S. .; RISHABH; BHATIA, K. .; SHARMA, R. . A Study on Face Expression Observation Systems. American Journal of Science and Learning for Development, [S. l.], v. 2, n. 6, p. 153–158, 2023. DOI: 10.51699/ajsld.v2i6.2092. Disponível em: https://inter-publishing.com/index.php/AJSLD/article/view/2092. Acesso em: 20 may. 2024.