NWOSU, H. E. An Evaluation of the Effect of Children of School Age Engagement in Stone Mining and Quarry Activities on Child Education . Nigerian Academy of Management Journal, [S. l.], v. 17, n. 2, p. 66–82, 2022. Disponível em: https://namj.tamn-ng.org/index.php/home/article/view/187. Acesso em: 23 apr. 2026.