Hardani, R.N. and Rocmah, L.I. 2021. Increasing The Ability To Recognize Number Symbols Through The Activities Of Playing Snakes And Stairs For Children Of Group A In Tk Aisyiyah Busthanul Athfal 6 Candi. Academia Open. 5, (Aug. 2021), 10.21070/acopen.5.2021.2221. DOI:https://doi.org/10.21070/acopen.5.2021.2221.