• (2020) The Oddities of English and Other Languages by Rupert Taylor; Owlcation
https://owlcation.com/humanities/The-Oddities-of-English-and-Other-Languages
• (2014) Forty Strange Facts about the English Language by Jackson Stiles; The New Daily
https://thenewdaily.com.au/entertainment/books/2014/12/21/awesome-facts-english/
• English Language: Crazy Inconsistencies by Dr. Albrecht Classen; The University of Arizona
https://aclassen.faculty.arizona.edu/content/english-language-crazy-inconsistencies