Arrumaisha. “Perbedaan Kemandirian Antara Anak Sulung Dengan Anak Tunggal Di RA As-Sa’adah Medan: Differences in Independence Between the Eldest Child and the Only Child at RA As-Sa’adah Medan”. Indonesian Journal of Early Childhood: Jurnal Dunia Anak Usia Dini, vol. 5, no. 2, July 2023, pp. 362-7, doi:10.35473/ijec.v5i1.2413.