ANESTESIA SITUMORANG; DEDE RUSLAN. Pengaruh Penerapan Model Problem Based Learning terhadap Hasil Belajar Siswa Pada Mata Pelajaran Ekonomi Ditinjau dari Motivasi Belajar di SMA Teladan Pematangsiantar. IKRAITH-EKONOMIKA, [S. l.], v. 9, n. 2, p. 1289–1302, 2026. Disponível em: https://journals.upi-yai.ac.id/index.php/IKRAITH-EKONOMIKA/article/view/6777. Acesso em: 22 aug. 2026.