Lumbantobing, Ligita Friskila, Gebby Gabriella Simanjuntak, Liska Sinaga, Debora Hutajulu, Pani Santarika Saragih, Monira Noverdita Sinaga, and Selviana Napitupulu. “AN ANALYSIS ON SPEAKING PROBLEMS IN SMP NEGERI 3 PEMATANG SIANTAR”. KOLONI 1, no. 4 (November 16, 2022): 109–114. Accessed May 25, 2026. https://koloni.or.id/index.php/koloni/article/view/276.