THE EFFECTIVENESS OF ORAL PRESENTATION TECHNIQUE FOR SPEAKING SKILL TO STUDENTS AT SMA NEGERI 1 KOTAMOBAGU. kompetensi [Internet]. 2022 Dec. 15 [cited 2025 Dec. 19];1(11):901 910. Available from: https://ejurnal.unima.ac.id/index.php/kompetensi/article/view/3585