Panjaitan, Setia Juwita, Dody Feliks P. Ambarita, Naeklan Simbolon, Demmu Karo-Karo, and Erlinda Simanungkalit. “Analisis Kesulitan Membaca Permulaan Siswa Kelas I SD Negeri 064982 Medan Helvetia”. Indo-MathEdu Intellectuals Journal 4, no. 3 (December 27, 2023): 2853–2860. Accessed May 12, 2025. https://ejournal.indo-intellectual.id/index.php/imeij/article/view/586.