Yohana I, Sopandi W, Wahyu W. The Urgency of Implementation RADEC Learning Model to Understanding of Three Levels Representation in Chemistry Learning: Literature Review. JES [Internet]. 2022 Apr. 24 [cited 2026 Sep. 24];6(2):286-93. Available from: https://jes.ejournal.unri.ac.id/index.php/JES/article/view/1870