Fitriasari, Putri, Elah Nurlaelah, and Toni Hidayat. “Number Sense: Flexibility in Thinking about Numbers”. The Eurasia Proceedings of Educational and Social Sciences 35 (August 12, 2024): 169–178. Accessed October 12, 2024. https://epess.net/index.php/epess/article/view/812.