URL الوصول: http://books.openedition.org/ifpo/6709
URL الوصول: http://books.openedition.org/ifpo/12497
URL الوصول: https://explore.openaire.eu/search/publication?articleId=openedition_::42b6561ff6f449f216c77ff9f762e6d4http://books.openedition.org/ifpo/12497