Suryani, N.A. and Haryono, M. 2018. Improvement of the Logical Intelligence Through Media Kolak (Collage Numbers) Based on Local Wisdom on Early Childhood. Jurnal Obsesi : Jurnal Pendidikan Anak Usia Dini. 2, 2 (Dec. 2018), 255–261. DOI:https://doi.org/10.31004/obsesi.v2i2.90.