Chalidaziah, W. “Kondisi Konsentrasi Belajar Anak Usia Dini Di Taman Kanak-Kanak X”. Aṭfālunā Journal of Islamic Early Childhood Education, Vol. 1, no. 1, June 2018, pp. 24-28, doi:10.32505/atfaluna.v1i1.771.