Susanti, Eti, Wahyu Sopandi, and Supriadi Supriadi. “Enhancing Mathematical Thinking Skills in Elementary Fraction Learning through the RADEC Model: A Systematic Literature Review”. Journal of Innovation and Research in Primary Education 4, no. 3 (August 18, 2025): 1776–1786. Accessed January 21, 2026. https://ejournal.papanda.org/index.php/jirpe/article/view/1623.