Saragih, J.F.B. 2011. Anak dan Ruang Bermain: Telaah Terhadap Beberapa Penelitian Berbasis Affordances. ComTech: Computer, Mathematics and Engineering Applications. 2, 2 (Dec. 2011), 603-612. DOI:https://doi.org/10.21512/comtech.v2i2.2809.