- https://owl.purdue.edu/owl/general_writing/index.html
- https://writing.ku.edu/abstract
- https://owl.purdue.edu/owl/general_writing/index.html
- coloradocollege.edu/offices/colketcenter/writing-center/resources/forstudents/
- http://lss.info.yorku.ca/files/2013/08/PQ3R-Handout.pdf
- http://guidetogrammar.org/grammar/composition/brainstorm_clustering.htm
- https://writingcenter.unc.edu/tips-and-tools/understanding-assignments/
- http://writing2.richmond.edu/writing/wweb/structure.html
- https://www.thoughtco.com/the-introductory-paragraph-1857260
- https://writingcenter.fas.harvard.edu/pages/ending-essay-conclusions
- https://www.hamilton.edu/academics/centers/writing/writing-resources