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Eyc, K. (2016, April 1). The importance of parallel play on speech development. https://www.earlyyearscareers.com/eyc/learning-and-development/importance-parallel-play-speech-development/

Prager, S. (2021, July 8). Why parallel play is important for your toddler’s development. https://www.newfolks.com/inspiration/parallel-play-toddlers/