HADJDOUDOU , Meryem; ISMAILI , Yamna. Impaired concentration of attention among to pupils of the second stage of primary school- (fourth and fifth years of primary stage). Al-Jamie Journal In Psychological Studies and Educational Sciences, [S. l.], v. 7, n. 2, p. 1039–1055, 2022. Disponível em: https://journals.univ-msila.dz/index.php/ajpe/article/view/8825. Acesso em: 3 apr. 2026.