Widayati, S., Simatupang, N., Adhe, K. R., & Hasanah, N. U. (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