research design - SERP Analysis

https://www.scribbr.com/methodology/research-design/

https://en.wikipedia.org/wiki/Research_design

https://researcher.life/blog/article/what-is-research-design-types-examples/

https://info.peabody.vanderbilt.edu/program-paths/research-design-data-analysis/what-is-rdda

https://pmc.ncbi.nlm.nih.gov/articles/PMC4763399/

https://nobaproject.com/modules/research-designs

https://www.ucg.ac.me/skladiste/blog_609332/objava_105202/fajlovi/Creswell.pdf

https://library.sacredheart.edu/c.php%3Fg%3D29803%26p%3D185902

https://guides.lib.udel.edu/researchmethods/design

https://uk.sagepub.com/sites/default/files/upm-assets/28285_book_item_28285.pdf