Anggeriani, Ledi Ayu, and Siti Quratul Ain. “Dampak Kurang Konsentrasi Siswa Pada Pembelajaran Matematika”. Aulad: Journal on Early Childhood 7, no. 3 (November 4, 2024): 789–797. Accessed October 8, 2025. https://mail.aulad.org/index.php/aulad/article/view/773.