Kusma, Indah Kartikasari, and Ratna Purwanti. 2022. “Mengembangkan Kemampuan Mengenal Lambang Bilangan Melalui Model Direct Instruction, Numbered Head Together Dan Media Puzzle”. Gawi: Journal of Action Research 2 (2):54-62. https://doi.org/10.59329/gawi.v2i2.160.