ERNI, Erni. Meningkatkan Hasil Belajar Siswa Melalui Penerapan Pendekatan Pemecahan Masalah (Problem Solving) pada Mata Pelajaran Matematika . Cokroaminoto Journal of Primary Education, [S. l.], v. 1, n. 1, p. 45–51, 2018. DOI: 10.30605/cjpe.1.1.2018.73. Disponível em: https://e-journal.my.id/cjpe/article/view/73. Acesso em: 18 aug. 2025.