full stop comma semicolon - SERP Analysis

https://www.grammarly.com/punctuation

https://www.uopeople.edu/blog/punctuation-marks/

https://hemingwayapp.com/articles/grammar-punctuation/punctuation-marks

https://www.youtube.com/watch%3Fv%3D4IqlgGLV1XQ

https://www.khanacademy.org/test-prep/sat-reading-and-writing/x0d47bcec73eb6c4b:digital-sat-grammar-practice/x0d47bcec73eb6c4b:boundaries-punctuation/a/grammar-guide-punctuation

https://blog.wordvice.com/when-to-use-commas-colons-semicolons-and-dashes/

https://www.iup.edu/writingcenter/writing-resources/punctuation/punctuation-basics.html

https://en.wikibooks.org/wiki/English_in_Use/Punctuation