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AAP. 2015. Is your child ready for school? American Academy of Pediatrics. https://www.healthychildren.org/English/ages-stages/preschool/Pages/Is-Your-Child-Ready-for-School.aspx [Accessed July 2017]
CDC. 2016. Important milestones: Your child by five years. Centers for Disease Control and Prevention. https://www.cdc.gov/ncbddd/actearly/milestones/milestones-5yr.html [Accessed July 2017]
MedlinePlus (ADAM). 2015. Developmental milestones record—5 years. https://medlineplus.gov/ency/article/002016.htm [Accessed July 2017]
PBS Parents. Undated. Work it out through play. http://www.pbs.org/parents/talkingwithkids/news/play.html [Accessed July 2017]
ScienceDaily. 2016. Many kids not ready for kindergarten. https://www.sciencedaily.com/releases/2016/10/161025092958.htm [Accessed July 2017]