URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0edbcd0d433eb96deb2d6c18adb96a27https://revistas.ucm.es/index.php/CHMO/article/view/39234
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::90be25bb79dfdedfedcf425a73660a42https://hdl.handle.net/10171/15859