MARAPPAN, R. Classification and Analysis of Recommender Systems. International Journal of Mathematical, Engineering, Biological and Applied Computing, [S. l.], v. 1, n. 1, p. 17–21, 2022. Disponível em: https://www.scipublications.com/journal/index.php/ijmebac/article/view/331. Acesso em: 12 nov. 2025.