Ryan, K., L. Bruya, B. Shumate, C.J. Woytovech, A. Woytovech, B. Martensen, A. Malkusak, and J.A. Sievers. “A Collaboration Process to Produce a Natural Playscape”. Journal of Kinesiology & Wellness 1, no. 1 (November 1, 2012): 14–22. Accessed September 27, 2025. https://jkw.wskw.org/index.php/jkw/article/view/37.