ZAKI, M. I.; LINTANGSARI, A. P. How Confident Are High Schoolers to Speak English: A Report on Speaking Self-Efficacy Survey. Jadila: Journal of Development and Innovation in Language and Literature Education, [S. l.], v. 3, n. 2, p. 131-147, 2023. DOI: 10.52690/jadila.v3i2.412. Disponível em: https://www.jadila.yayasancec.or.id/index.php/jadila/article/view/412. Acesso em: 7 apr. 2026.