Bangun AMP, Afriansyah EA, Imami AI. Developing ADDIE-Based Animated Mathematics Videos to Enhance Vocational High School Students’ Conceptual Understanding of Circle Geometry. Didact. Math. [Internet]. 2026 May 25 [cited 2026 Jun. 18];8(2):267-80. Available from: https://www.ejournal.unma.ac.id/index.php/dm/article/view/18193