Mohan Abbood A, Shakir Abd A-H. The Effectiveness of Employing Cognitive Trips and Geographic Atlas electronically on the Fourth –Stage- Students’ Achievement of Geography. Opción [Internet]. 9 de junio de 2019 [citado 2 de mayo de 2024];350:28. Disponible en: https://www.produccioncientificaluz.org/index.php/opcion/article/view/27412