Ahmad A, Maruf AH, Yudha CB. Effectiveness of digital-based mathematics learning media on sequence and series material. Polyhedron Int. J. Math. Educ. [Internet]. 2024 Nov. 30 [cited 2026 Feb. 11];2(2):69-78. Available from: https://nakiscience.com/index.php/pijme/article/view/163