Purnamasari, N.I. and Yusma, N.A. 2021. Mengembangkan Kemampuan Berpikir Logis Anak melalui Kegiatan Bermain Warna . Journal of Early Childhood Education Studies. 1, 2 (Dec. 2021), 37–71. DOI:https://doi.org/10.54180/joeces.2021.1.2.37-71.