JONI, D. A. R. W. THE EFFECT OF COOPERATIVE LEARNING TECHNIQUES AND SELF-CONFIDENCE ON STUDENTS’ SPEAKING COMPETENCY. Jurnal Pendidikan dan Pengajaran, [S. l.], v. 46, n. 2, 2013. DOI: 10.23887/jppundiksha.v46i2 Juli.2858. Disponível em: https://ejournal.undiksha.ac.id/index.php/JPP/article/view/2858. Acesso em: 30 jun. 2024.