Mallo B, Idris M, Nurhayadi, Pathuddin, Dasa Ismaimuza. The impact of RADEC learning model on the problem-solving ability of high school students. J. Honai Math [Internet]. 2025 Aug. 30 [cited 2026 Jun. 24];8(2):287-96. Available from: https://journalfkipunipa.org/index.php/jhm/article/view/822