Warmansyah, Jhoni, Faiha Azizah, Restu Yuningsih, Meliana Sari, Nurhasanah Nurhasanah, Amalina Amalina, and Winda Trimelia Utami. 2023. “The Use of an Open-Ended Learning Approach on The Ability To Recognize The Concept of Numbers: Its Effectiveness for Children 4-5 Years Old”. Child Education Journal 5 (2):110-19. https://doi.org/10.33086/cej.v5i2.4225.