Dwi Purwanti, and A. Yus. “The Influence of Playdough Media on the Achievement of Cognitive Development of Children Aged 4-5 Years in TK Negeri 2 Pembina Medan”. Asian Journal of Applied Education (AJAE), vol. 2, no. 3, July 2023, pp. 381-92, doi:10.55927/ajae.v2i3.5127.