• (2021) Three Ways to End a Sentence; Khan Academy
https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/introduction-to-commas/v/three-ways-to-end-a-sentence-punctuation-khan-academy
• (2021) Meet the Comma; Khan Academy
https://www.khanacademy.org/humanities/grammar/punctuation-the-comma-and-the-apostrophe/introduction-to-commas/v/meet-the-comma-the-comma-punctuation-khan-academy
• (2018) Colons and Semicolons by The School of Life; YouTube
https://www.youtube.com/watch?v=xHa5tWKkvd4
• (2015) When to Use Apostrophes – Laura McClure; TED-Ed; YouTube
https://www.youtube.com/watch?v=My6oGvkHnfY