Siska Nurfadilah Sri Kusumah, Umbara U. Penerapan Didactical Design Research (DDR) Pada Materi Teorema Pythagoras di Kelas VIII SMP Negeri 3 Kuningan. dima [Internet]. 2024 Dec. 26 [cited 2025 Apr. 26];7(1):58-72. Available from: https://ejournal.unma.ac.id/index.php/dm/article/view/12464