Meningkatkan Motivasi Belajar Siswa Melalui Penerapan Model Layanan Bimbingan Konseling Berbasis Portofolio. JURNAL PENA EDUKASI, [S. l.], v. 7, n. 2, p. 55–64, 2020. DOI: 10.54314/jpe.v7i2.435. Disponível em: https://jurnal.goretanpena.com/index.php/JPE/article/view/435.. Acesso em: 4 sep. 2026.