Sembiring, Jenita, Nurlia Ginting, Frida lubis, and Camelia Sembirng. “Pengenalan Public Speaking Pada Siswa SD Negeri 027089 Kota Binjai”. JURNAL ABDIMAS MADUMA 4, no. 2 (July 9, 2025): 90–98. Accessed November 1, 2026. https://journal.eltaorganization.org/index.php/ecdj/article/view/453.