A Systematic Review of AI Chatbots in Education Using NLP and LLMs. International Journal of Latest Technology in Engineering Management & Applied Science, [S. l.], v. 15, n. 5, p. 422–431, 2026. DOI: 10.51583/IJLTEMAS.2026.150500038. Disponível em: https://www.ijltemas.in/submission/online/article/view/4720.. Acesso em: 30 may. 2026.