“SELF-CONFIDENCE, SELF-EFFICACY AND SPEAKING ABILITY IN SUPPORT OF SUCCESSFUL ENGLISH LANGUAGE LEARNING”, transformasi, vol. 5, no. 1, hlm. 203–222, Okt 2023, Diakses: 3 Oktober 2025. [Daring]. Tersedia pada: https://transformasi.kemenag.go.id/index.php/journal/article/view/292