<https://www.cambridge.org/education/subject/science/chemistry?format=&isbn=9781108796576>
<http://schema.org/datePublished>
"2020-07-09"^^<http://schema.org/Date>
<https://www.cambridge.org/ar/education/subject/science/chemistry/cambridge-international-a-level-chemistry-3rd-edition/cambridge-international-as-a-level-chemistry-3rd-edition-digital-teachers-resource-digital-teachers-resource-access-card?format=EB&isbn=9781108796576>