LU konference- Latvijas Universitātes datubāzes: https://www.lu.lv/lv/nc/portals/datubazes/
- Google Scholar: https://scholar.google.com/?oi=gsb&hl=lv
- The Open University. Postgraduate study skills: Finding appropriate academic material: https://help.open.ac.uk/finding-appropriate-academic-material
- The Open University. Postgraduate study skills: Conducting a literature review: https://help.open.ac.uk/conducting-a-literature-review
- University of Birmingham. Finding books published in English: Home. http://libguides.bham.ac.uk/asc/booksinenglish
- University of Leicester. Doing a literature review: https://www2.le.ac.uk/offices/ld/resources/study-guides-pdfs/dissertation-skills-pdfs/doing-a-literature-review-v1%200.pdf/view
- University of Birmingham. Finding Newspapers: Welcome: http://libguides.bham.ac.uk/asc/newspapers