Electronic/World Wide Web>Internet Article:  Fattal, Isabel (2017-10-25), The Hidden Meaning of Kids' Shapes and Scribbles, Retrieved on 2017-10-25

Source Material [www.theatlantic.com]

Periodicals>Journal Article:  Kuzawa, Chugani, Grossman, Lipovich, Muzik, Hof, Wildman, Sherwood, Leonard, Lange (August 25, 2014), Metabolic costs and evolutionary implications of human brain development, PNAS, Retrieved on 2014-08-27

Source Material [www.pnas.org]

Books, Brochures, and Chapters>Book:  Eliot , Lise (2000-10-03), What's Going on in There? : How the Brain and Mind Develop in the First Five Years of Life, Bantam, Retrieved on 2011-07-18