Muhaimin Ibrahim, Siti, et al. “Pengaruh Permainan Puzzle Terhadap Konsentrasi Belajar Anak Usia Dini”. Jejak Digital: Jurnal Ilmiah Multidisiplin, vol. 2, no. 4, June 2026, pp. 5156-68, https://doi.org/10.63822/dd134e54.