Untari, N. B., and C. N. Aulina. “Improving the Ability to Recognize Consonants Through Smart Box Media for Children Aged 4-5 Years in Kindergarten”. Academia Open, Vol. 4, June 2021, p. 10.21070/acopen.4.2021.2542, doi:10.21070/acopen.4.2021.2542.