Arif, Ahmad, Randi Eka putra, and Muhammad Subhan. “Penerapan Model Direct Instruction Berbantuan Media Sumboard Untuk Meningkatkan Proses Dan Hasil Belajar Matematika Kelas IV SD Negeri 04/II Jaya Setia”. Journal of Innovative and Creativity (Joecy) 6, no. 2 (September 26, 2026): 50501–50514. Accessed October 14, 2026. https://joecy.org/index.php/joecy/article/view/14378.