Dent, Jonathan, editor (2020). Neurodiversity. Oxford Dictionary of English, 3rd ed, Oxford University Press.
Exceptional Individuals (n.d.). Other Neurodivergent Conditions. Retrieved from https://exceptionalindividuals.com/neurodiversity/other-neurodivergence/.
Truss, Lynne (2003). Eats, Shoots & Leaves.
Some info is taken from https://toneindicators.carrd.co/

Cambridge (n.d.). Citation. In dictionary.cambridge.org dictionary. Retrieved from https://dictionary.cambridge.org/dictionary/english/tone.
Mehrabian, Albert (1981). Silent Messages: Implicit Communication of Emotions and Attitudes (2nd ed.). Belmont, CA: Wadsworth.
Dent, Jonathan, editor (2020). Neurodivergent. Oxford Dictionary of English, 3rd ed, Oxford University Press.