Bongyuvi, R. L., and Melia Dwi Widayanti. “Pengaruh Media Colour Corrugated Paper (Kokoru) Terhadap Kemampuan Motorik Halus Anak Di TK Mekar Sari Surabaya: The Influence Of Colour Corrugated Paper (Kokoru) Media On Children’s Fine Motor Skills at Mekar Sari Kindergarten in Surabaya”. Indonesian Journal of Early Childhood: Jurnal Dunia Anak Usia Dini, vol. 5, no. 2, July 2023, pp. 389-97, doi:10.35473/ijec.v5i1.2390.