RIZKI, Atika. Pengaruh Efikasi Diri Dan Motivasi Berprestasi Terhadap Prestasi Belajar Ekonomi Siswa Kelas X Sma Negeri 11 Medan . Journal Economy and Currency Study (JECS), [S. l.], v. 1, n. 2, p. 9–15, 2021. Disponível em: https://pusdikra-publishing.com/index.php/jecs/article/view/96. Acesso em: 21 aug. 2025.