Widayati, Sri, Nurhenti Simatupang, Kartika Rinakit Adhe, and Nurul Ulfatul Hasanah. 2019. “RETRACTED: Perbedaan Kreativitas Anak Kelompok A Antara Kegiatan Kolase Bahan Alam Dan Kolase Bahan Kertas”. Journal of Early Childhood Care and Education 2 (1):21-29. https://doi.org/10.26555/jecce.v2i1.625.