Evaluation the Relation between School Bag Weight and Backache among Primary School Pupils in Tikrit City. Medico Legal Update, [S. l.], v. 20, n. 1, p. 278–283, 2020. DOI: 10.37506/mlu.v20i1.370. Disponível em: https://ijop.net/index.php/mlu/article/view/370. Acesso em: 4 jun. 2026.