LEARNING SEARCH TASKS IN COLLABORATIVE ENVIRONMENT BASED ON HIERARCHICAL MINING. International Journal of Advance Engineering and Research Development (IJAERD), [S. l.], v. 6, n. 5, p. 29–35, 2019. Disponível em: https://ijaerd.org/index.php/IJAERD/article/view/4201. Acesso em: 31 oct. 2025.