SIREGAR, Tanti Jumaisyaroh. THE INFLUENCE OF PROBLEM-BASED LEARNING ON IMPROVING STUDENTS’ SELF-EFFICACY ATTITUDES. REKOGNISI : Jurnal Pendidikan dan Kependidikan (E-ISSN 2599-2260), [S. l.], v. 3, n. 1, p. 117–129, 2018. Disponível em: https://jurnal.unusu.ac.id/index.php/rekognisi/article/view/83. Acesso em: 6 apr. 2025.