What are 12 formal qualitative articles on cognitive behavioral therapy on insomnia that are from 2014 and newer, and use either phenomenological, grounded, and ethnography?

Please kindly provide the link or DOI for the articles.

The following cannot be used:

-systematic reviews, meta-analysis

-thematic and content analysis

-randomized control trial

-pilots studies

-mixed methods

-single-subject case studies

Thanks so much!