URL:https://orei.redclade.org/wp-content/uploads/2015/06/En_las_escuelas_UNESCO_Tom--s-Munita.jpg
掲載元:https://orei.redclade.org/post_materiales/informe-gem-mayoria-de-los-manuales-escolares-no-aborda-de-manera-integral-conceptos-cruciales-para-el-desarrollo-sostenible/