Utsna Khoiro Ummatin et al. 2026. Pengaruh Tidur Malam Terhadap Kualitas Belajar Anak Usia 5 Tahun. JIEEC (Journal of Islamic Education for Early Childhood). 8, 1 (Apr. 2026), 12–21. DOI:https://doi.org/10.30587/jieec.v8i1.11519.