Alliance for Childhood and the U.S. Play Coalition, Improving Children’s Health Through Play.
https://usplaycoalition.org/wp-content/uploads/2018/04/Play-and-Health-White-Paper-FINAL.pdf

American Academy of Pediatrics’ Clinical Report, The Importance of Play in Promoting Healthy Child Development and Maintaining Strong Parent-Child Bonds.
http://pediatrics.aappublications.org/content/119/1/182

American Academy of Pediatrics’ Clinical Report, The Power of Play: A Pediatric Role in Enhancing Development in Young Children.
http://pediatrics.aappublications.org/content/142/3/e20182058

Dr. Kathy Hirsh-Pasek Official Website.
https://kathyhirshpasek.com

Harvard University Graduate School of Education, Project Zero
http://www.pz.harvard.edu

Melissa & Doug and Gallup, Time to Play.
http://ww2.melissaanddoug.com/MelissaAndDoug_Gallup_TimetoPlay_Study.pdf

Minnesota Children’s Museum, Power of Play – A Research Summary on Play and Learning.
https://mcm.org/wp-content/uploads/2018/06/Research-Summary-1117.pdf

The Lego Foundation, Learning Through Play: A Review of the Evidence.
https://www.legofoundation.com/media/1063/learning-through-play_web.pdf

Vroom
www.vroom.org