European Centre for Modern Languages of the Council of Europe:
Why do we need pluralistic approaches?
A Framework of Reference for Pluralistic Approaches - http://carap.ecml.at/
Pluralistic teaching and learning materials - https://carap.ecml.at/Database/tabid/2313/Default.aspx
Discovering culturally and linguistically diverse children's literature:
https://www.editions-soleildeminuit.com/
http://fr.childrenslibrary.org/
Council of Europe:
Plurilingual Curricula and Evaluation
Platform of Resources and References for Plurilingual and Intercultural Education