SELF CONFIDENCE AND ITS INFLUENCE ON ENGLISH ORAL PRESENTATION SKILLS AMONG FOURTH SEMESTER STUDENTS OF THE ENGLISH LANGUAGE EDUCATION DEPARTMENT AT UNIVERSITAS ISLAM RIAU. Sindoro [Internet]. 2026 Jun. 25 [cited 2026 Oct. 21];18(7). Available from: https://journal.cib.institute/index.php/sindoro/article/view/318