RUSMIATI. Pendekatan Problem Solving Dalam Upaya Meningkatkan Prestasi Belajar Peserta Didik Pada Materi Pokok Peduli Terhadap Sesama. Educator Development Journal, [S. l.], v. 4, n. 1, p. 55–70, 2026. Disponível em: https://journal.ar-raniry.ac.id/index.php/edj/article/view/9927. Acesso em: 16 apr. 2026.